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Feb 20, The above, especially definition 1, may also be referred to as “chicken lanes” in certain parts of the U. Also note that the source of that page the U. A four-direction multiplex is theoretically possible some individual routes can and do briefly run in or close to the opposite direction of which they are signed, see Question A: The charter is as follows: misc. Former crossings on Interstates: I north end in IN see above. This “town” is not to be confused with the more general meaning of “town” above.
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FL 9 in Miami. US 25 is only in OH 0. Aug 4, All Interstates are in it, but not all US Routes. Many state routes are included and even some city-maintained routes. KS used green and white markers for US ID substitutes brown for black on its scenic-designated routes, a color scheme mimicked on many historic alignments of formerly numbered routes, usually US routes.
AL and GA use colors on certain corridors. But the most interesting and most recently removed case has been FL. Each route got a color, and 2 routes of the same color never intersected until US was extended west to US both green. Many colored signs are still up, most now having been manufactured by FDOT. See also Question Every state and province maintains its own state highway system with its own numbers.
Some states number only the most important routes connecting towns and villages such as ME and WI , while others will number one-lane cowpaths like KY and LA. Some states like TN and TX have more than one marker for type of road. DC also has one numbered road, DC While there is policy against the presence of same-numbered Interstate and U. Maryland was the first to form a state highway department in A: Most state numbered roads change when they cross a state line.
However, in quite a few instances, the road keeps the same number when crossing states. This is usually done to make it easy to track a route from state to state. This also occurs occasionally between countries, such as the US and Canada.
Sep 8, VT in Lemington, formerly touted as the shortest, is officially recorded as a rounded 0. Oct 19, A: VA’s George Washington Memorial Parkway has the “secret” inventory number of , with the Dulles Access Road and the Colonial Parkway elsewhere in the state being numbered and respectively. For a discussion of the highest-numbered streets in the U. Many of these are county-wide systems where the origin point is a county line or base line, not a place near the downtown of a city.
Note that many places in northern UT have roads whose numbers are times more than similar numbers in other places e. Jan 11, Second occurs more than First, according to that page, because ” Also note that the source of that page the U. Census Bureau may have multiply-counted streets, such as those which have both “East” and “West” or “North” and “South” sections. A: It was part of a longer multi-state SR In the s and s it went from the Mexican border in Arizona to the Canadian border in Montana.
A: Florida uses the grid system for its state highways, which puts 1 on the Atlantic coast. However, when U. Feb 1, Highway system see Section 7. Jan 30, A: These are county routes which are numbered with the “numerator” representing the number of the route from which the fractional route branches. While m. The Constitution says highway issues are provincial matters. There is one major national highway, the Trans-Canada Highway.
See below for more info. John’s, NL. It is more of a special marker than anything, it changes numbers frequently, has a few loops and spurs eg Northern Ontario and to PEI and can range from a 2 lane country road through BC to an 8-lane superhighway through downtown Montreal. The TCH is just an agreement among the provinces for one highway linking the entire country. It officially opened in Feb 13, A: The Quebec Autoroutes are a system of freeways and expressways connecting all major centres in the province.
They have similar shields and numbering to the Interstate system in the USA. Autoroutes, the national freeway system, which are mostly toll, are marked A-nn. The main superhighways are the Motorways, designated Mnn. The other major highway numbers are Ann. Both are numbered in a similar fashion, with 1 connecting London to Edinburgh. The one-digit A-routes form boundaries of zones for the other A-routes. A10 through A19 are in zone 1, for example.
Motorway zones are formed similarly but not identically. M25 is the beltway around London. The three-digit A-routes are numbered keeping highways with those numbers close to the 2-digit numbered roads with those digits matching the first two digits of the 3-digit number.
The B-routes, with 4-digits, are numbered using even smaller zones based on A-roads. There are other U. Sign standards are dicussed in Question Australia has many main classes of routes.
The National Highways are similar to the Interstates in the fact that they are the most important roads connecting the major cities. However, they are not entirely freeway-standard. National Routes are analogous to the U. Highway system as they came about by agreements between states to give common numbers to nationally and regionally important roads.
These provide access to rural areas and medium-sized cities. Australian states also have their own highway numbering systems. Sydney and Brisbane also have Metroads which follow major streets and tollways through those areas.
Did you know that there are national standards in certain countries for road signs? The one in the U. It specifies sign colors, fonts, shapes and designs, as well as standards for pavement markings and signposts. The original source of most of the U. State Route Sign Poster”. The circle marker is the default marker for U. Colored route marker shields are covered in Question 7.
More specifics on the designs of U. In it was announced that OK would be replacing its marker. In that context it is actually called a “confirming” assembly, with the “reassurance” name applied to an assembly posted in an interim space between intersections see MUTCD Section 2D.
Sometimes only the route number is painted this is common in England. See Question A: The official typeface designation for the majority of signs in the U. National Park Service formerly used Clarendon for its signs example at link in the previous sentence but is now using Rawlinson Roadway, trademark of Terminal Design, Inc.
This was seen mostly in KS early on, but is now spreading throughout the US. Some in the U. CA formerly didn’t number exits at all, except for some instances on freeways in Los Angeles, which were numbered by mile, apparently an isolated Caltrans experiment. Both practices of consecutive and distanced-based numbering are used in Europe, depending on the country.
Many U. When there is more than one exit within a mile in distance-based systems or when there is an exit between two consecutively-numbered exits in consecutive systems, letter suffixes are used, usually going in the same order as the numbers ex. Older systems use directions ex. Feb 17, Most of these are part of ITS see Section 2. See also 3. Jun 15, A: Some U. A: The highest non-directional suffix see They have more visibility, especially at night.
Some towns, such as Peabody MA, use them for much more than just pedestrian, school, and bike warning signs; this overuse may lead to people getting used to them. Flourescent sheeting for regular yellow and orange signs has also been approved. Apr 30, Finally, an occasional m. Note: This FAQ does not necessarily endorse any business.
Be advised that possession of road signs may be a criminal offense in some localities, even with valid proof of purchase.
A list of speed limits on roads in the U. These include limits on different types of road as well as split speed limits different limits for trucks than cars — currently 10 states have split speed limits. The highest posted speed allowed in the U. For discussion on speed limits a good resource is the newsgroup rec. Jun 28, A: These signs were created in the s to minimize the number of large billboards near highways. Criteria for each type of business to be included on these signs may be found at the previous links.
Aug 25, A: PA has installed permanent detour signs at its freeway offramps across the state in order to have a permanent alternate route for traffic in case a freeway becomes impassible due to an accident or weather conditions. These detours are color-coded depending on the direction of the detour red, green, blue, black. A: It stands for “Hazardous Materials”. Some places have installed signage on an experimental basis which have legends in truck-driver slang.
Note: For many examples below, “left” and “right” should be transposed for those in left-side drive areas. The traffic signal chapter of the U. A: California Only used on newer ramp meters see See also below Delaware Means that the crossroad has a flashing red, but that the signal goes into normal operation if a car triggers a sensor on the crossroad by waiting a given amount of time. These have likely been removed from the state.
May be located at a side road or crossroad with a stop sign so the cross traffic can take advantage of the red time on the main road. Depending on the province, either a green ball or green arrow or both flash, often at a more rapid speed than a light in a flashing beacon signal. Variations include a solid green in the same direction as other signals with a solid red, with the green obscured except to those in the left-turn lane s “Dallas Display” , and a flashing solid red used extensively in MI or flashing red arrow used in DE and MD in various signal configurations in the left-turn signal – all are also covered at the aforementioned website.
Occasionally flashing yellow arrow beacons are used, combining the meanings of an arrow sign and a flashing solid yellow beacon. Feb 24, A: Now obsolete, these meant to watch for turning traffic across the crosswalk whereas a solid “WALK” meant that there should be none. These were once used extensively in DC, and some may still exist in places. It means that an all-pedestrian phase is in effect, and no cars are going thru the intersection. It was implemented before pedestrian signals came into use.
If you are driving and see this, stop. In some European countries, red-yellow precedes green and often coincides with the yellow phase for cross traffic. This might be to assist those drivers with manual transmissions “sticks”. This is old and is now rare. A: Strobes are installed within a red signal lens at intersections at which a signal is not expected, such as after a long stretch of a high-speed highway with no signals.
The strobe light is there to call attention to the red light. In some instances a stand-alone red signal with a strobe is used. The strobes are either linear across the red lens or circular around its edge. The frequency of the strobe light is much less than that which is required to trigger a response in people with epilepsy, so it is not a danger to them.
A: There are now traffic signals which use LEDs, or light-emitting diodes. Each lens in an LED signal contains many points of light the diodes , either in a centralized cluster covered by a lens or completely covering the signal head face. These signals are advantageous because they use considerably less electricity than those with incandescent bulbs, and because if there is a diode failure, only one point of light of dozens will go out, which is barely noticeable the signal can still function correctly, as opposed to if a bulb burned out.
Battery backups are often applied to these as it takes relatively little power to operate them until electricity is restored. These signals are now common throughout the United States.
Taiwan has an animated version. Amsterdam, Netherlands has a version which counts down to the beginning of the walk phase. These signals emit a chirp, ringing, or recorded voice to assist visually-impaired pedestrians. They are often found on college campuses. Aug 23, There is also a green-on-top signal on MA-3A in Billerica, but it is not an inverted signal; rather, it is a five lens vertical left turn signal without the red and yellow circular indicators, leaving only green, yellow left arrow, and green left arrow, from top to bottom.
It is a work by Pierre Vivant in London, England. Aug 26, These are also located in places where an obstruction might obscure a vertical assembly, and are also used in various business districts for aesthetic purposes. Ramp meters are traffic signals placed along freeway entrance ramps to control ramp traffic in order to reduce congestion on the freeways to which the ramps lead.
Feb 16, A: If a signal is used where roads intersect at a sharp angle, or there are multiple sets of signals with different cycles in multiple succession, fresnel lenses, which direct light in a specific direction, may be used fresnel lenses are also used in lighthouses and theater spotlights in a signal head generically called “optically programmable”. The 3M company made signals like this which they called “High Visibility Signals” – an earlier model has conspicuously-large light housing, while a later model Model resembles more conventional signals.
There are other ways of obscuring signals in these instances, such as louvers slats. Mar 22, A: A protected left turn is when a left turn signal displays a red arrow or solid when the green arrow or yellow arrow or solid is not lit; the left-turning vehicle must wait for a green left arrow to turn.
Some places, notably MA, use a left turn arrow for permissive movements instead of protected movements. Sep 9, A: The following places, all but three in the U. Jun 19, I also just misses WA in many places along the Columbia River I just misses NJ at the western interchange with I See also 6.
I just enters NY see 6. I and I running together miss MI by less than a mile in three different places: I does enter AZ by a significant distance in the NW part of the state but is often overlooked since it traverses no significantly-sized towns nor has interchanges with any major roads.
Not listed are routes in the US which come very close to Canada and Mexico, which obviously do not enter those countries. Two roads in South America often mentioned as widest in the world actually have fewer lanes: Avenida 9 de Julio part of National Route 14 in Buenos Aires, Argentina, has 16 May 6, A: The following movies and television shows contain significant amounts of open-road content all U.
Feb 9, A: Auto trails were a system of roads prior to the creation of numbered routes. Some unofficial state websites also have auto trail sections see Section 5.
A: “Galloping Gertie” was a bridge on WA 16 across the Tacoma Narrows in Tacoma which, due to its poor design, allowed the crosswinds to twist it apart. Nov 1, A: Throughout time, there have been various definitions: 1.
A two-way center left-turn lane 2. In the early 20th Century, a center lane of three in rural areas which traffic going in either direction could use to pass these were mostly obsolete by the s, though they could be found in MA into the s 3. The inner lane of two in a single direction on a three-lane road where the opposite single-lane direction is permitted to use it to pass.
Lane markings, from left to right and the single lane carrying oncoming traffic, would be white solid line, [lane], part-dashed-part-solid yellow line with the dashes on the left, [suicide lane], white dashed line, [lane], white solid line.
A reversible lane usually controlled by lane signals These are still located in most major U. The shoulder when used as a travel lane during rush hour primarily metro Boston, MA 6. A roadway with barriers close on each side. The above, especially definition 1, may also be referred to as “chicken lanes” in certain parts of the U.
There are variations of these facilities, roadways which carry traffic in one direction or the other, depending on variables. A: This is a lane which may be on one roadway of a divided highway or another depending on the position of a moveable barrier. A history of pavement markings in the U.
The report also includes other information about pavement markings, both in the U. They are located in various locations throughout the world, notably in the Seattle, WA, U. A: This has one of many names depending on the region: Berm, boulevard, boulevard strip, city strip, devil strip, grassplot, lawn strip, long acre, nature strip, neutral ground, parking, parking strip, parkway, planting strip, side strip, terrace, tree belt, tree lawn, verge.
Some of these terms also refer to a median or a paved shoulder. Apr 21, This is called a “helix”, and is used usually when a grade is steep enough that a direct route would be too impractical, occasionally at a tunnel entrance. It is commonly used on railroads. Jun 11, These were built to save on construction and mantenance costs, as in this configuration only one set of buildings is required for both directions of the highway.
A: The following Interstate and US routes are signposted with directional plaques consistent with their parity even-numbered routes signed E-W and odd ones signed N-S in some places and not consistent evens signed N-S and odds signed E-W in other places, the exceptions listed, or for 3-digit routes, simply have different sets of directions in different places:. US is a special case in that it is always signposted N-S, yet each direction switches to the opposite one in Elizabethton, TN.
A: The following have said sections; unless otherwise noted, direction indications are continuous from the adjacent section s which are signposted more logically e. EAST for the direction of the route going west in the section in question but east most everywhere else : I, N.
MA US, W. NY posted as N-S; see QC Other less-important roads have brief sections like this; in these cases, because the opposite-way section is so short, the direction indicators are usually consistent with the general alignment of the route, not the alignment of the short opposite-way section.
Sometimes there are simply no direction indicators within the opposite-way section. There have also been instances of directions being replaced by destination cities, such as St. Double-decked freeways structures with one roadway directly above the one for the opposite direction are fairly common, but double-deck surface streets are not as common.
Road designators are the type of road description, after the name of the road. They vary from simple words like “street” and “avenue” to fancy ones used in housing subdivisions. Often times during a sports championship, threads come up stating the roads, singly-designated or otherwise, which connect the venues of the teams, and variantly a related neutral venue such as with the Superbowl in the NFL , although sometimes the threads only discuss veunes of teams in the same division.
Jan 16, Many m. Finally, searching flea markets, garage sales, and used bookstores sometimes produces results. Many colored signs are still up, most now having been manufactured by FDOT. See also Question Every state and province maintains its own state highway system with its own numbers. Some states number only the most important routes connecting towns and villages such as ME and WI , while others will number one-lane cowpaths like KY and LA.
Some states like TN and TX have more than one marker for type of road. DC also has one numbered road, DC While there is policy against the presence of same-numbered Interstate and U. Maryland was the first to form a state highway department in A: Most state numbered roads change when they cross a state line. However, in quite a few instances, the road keeps the same number when crossing states. This is usually done to make it easy to track a route from state to state.
This also occurs occasionally between countries, such as the US and Canada. Sep 8, VT in Lemington, formerly touted as the shortest, is officially recorded as a rounded 0. Oct 19, A: VA’s George Washington Memorial Parkway has the “secret” inventory number of , with the Dulles Access Road and the Colonial Parkway elsewhere in the state being numbered and respectively.
For a discussion of the highest-numbered streets in the U. Many of these are county-wide systems where the origin point is a county line or base line, not a place near the downtown of a city. Note that many places in northern UT have roads whose numbers are times more than similar numbers in other places e. Jan 11, Second occurs more than First, according to that page, because ” Also note that the source of that page the U. Census Bureau may have multiply-counted streets, such as those which have both “East” and “West” or “North” and “South” sections.
A: It was part of a longer multi-state SR In the s and s it went from the Mexican border in Arizona to the Canadian border in Montana. A: Florida uses the grid system for its state highways, which puts 1 on the Atlantic coast. However, when U. Feb 1, Highway system see Section 7. Jan 30, A: These are county routes which are numbered with the “numerator” representing the number of the route from which the fractional route branches.
While m. The Constitution says highway issues are provincial matters. There is one major national highway, the Trans-Canada Highway. See below for more info. John’s, NL. It is more of a special marker than anything, it changes numbers frequently, has a few loops and spurs eg Northern Ontario and to PEI and can range from a 2 lane country road through BC to an 8-lane superhighway through downtown Montreal.
The TCH is just an agreement among the provinces for one highway linking the entire country. It officially opened in Feb 13, A: The Quebec Autoroutes are a system of freeways and expressways connecting all major centres in the province. They have similar shields and numbering to the Interstate system in the USA. Autoroutes, the national freeway system, which are mostly toll, are marked A-nn.
The main superhighways are the Motorways, designated Mnn. The other major highway numbers are Ann. Both are numbered in a similar fashion, with 1 connecting London to Edinburgh. The one-digit A-routes form boundaries of zones for the other A-routes. A10 through A19 are in zone 1, for example. Motorway zones are formed similarly but not identically. M25 is the beltway around London. The three-digit A-routes are numbered keeping highways with those numbers close to the 2-digit numbered roads with those digits matching the first two digits of the 3-digit number.
The B-routes, with 4-digits, are numbered using even smaller zones based on A-roads. There are other U. Sign standards are dicussed in Question Australia has many main classes of routes. The National Highways are similar to the Interstates in the fact that they are the most important roads connecting the major cities. However, they are not entirely freeway-standard. National Routes are analogous to the U. Highway system as they came about by agreements between states to give common numbers to nationally and regionally important roads.
These provide access to rural areas and medium-sized cities. Australian states also have their own highway numbering systems. Sydney and Brisbane also have Metroads which follow major streets and tollways through those areas.
Did you know that there are national standards in certain countries for road signs? The one in the U. It specifies sign colors, fonts, shapes and designs, as well as standards for pavement markings and signposts.
The original source of most of the U. State Route Sign Poster”. The circle marker is the default marker for U. Colored route marker shields are covered in Question 7. More specifics on the designs of U. In it was announced that OK would be replacing its marker.
In that context it is actually called a “confirming” assembly, with the “reassurance” name applied to an assembly posted in an interim space between intersections see MUTCD Section 2D. Sometimes only the route number is painted this is common in England. See Question A: The official typeface designation for the majority of signs in the U. National Park Service formerly used Clarendon for its signs example at link in the previous sentence but is now using Rawlinson Roadway, trademark of Terminal Design, Inc.
This was seen mostly in KS early on, but is now spreading throughout the US. Some in the U. CA formerly didn’t number exits at all, except for some instances on freeways in Los Angeles, which were numbered by mile, apparently an isolated Caltrans experiment. Both practices of consecutive and distanced-based numbering are used in Europe, depending on the country.
Many U. When there is more than one exit within a mile in distance-based systems or when there is an exit between two consecutively-numbered exits in consecutive systems, letter suffixes are used, usually going in the same order as the numbers ex. Older systems use directions ex. Feb 17, Most of these are part of ITS see Section 2. See also 3. Jun 15, A: Some U. A: The highest non-directional suffix see They have more visibility, especially at night. Some towns, such as Peabody MA, use them for much more than just pedestrian, school, and bike warning signs; this overuse may lead to people getting used to them.
Flourescent sheeting for regular yellow and orange signs has also been approved. Apr 30, Finally, an occasional m. Note: This FAQ does not necessarily endorse any business. Be advised that possession of road signs may be a criminal offense in some localities, even with valid proof of purchase. A list of speed limits on roads in the U. These include limits on different types of road as well as split speed limits different limits for trucks than cars — currently 10 states have split speed limits.
The highest posted speed allowed in the U. For discussion on speed limits a good resource is the newsgroup rec. Jun 28, A: These signs were created in the s to minimize the number of large billboards near highways.
Criteria for each type of business to be included on these signs may be found at the previous links. Aug 25, A: PA has installed permanent detour signs at its freeway offramps across the state in order to have a permanent alternate route for traffic in case a freeway becomes impassible due to an accident or weather conditions.
These detours are color-coded depending on the direction of the detour red, green, blue, black. A: It stands for “Hazardous Materials”. Some places have installed signage on an experimental basis which have legends in truck-driver slang. Note: For many examples below, “left” and “right” should be transposed for those in left-side drive areas. The traffic signal chapter of the U. A: California Only used on newer ramp meters see See also below Delaware Means that the crossroad has a flashing red, but that the signal goes into normal operation if a car triggers a sensor on the crossroad by waiting a given amount of time.
These have likely been removed from the state. May be located at a side road or crossroad with a stop sign so the cross traffic can take advantage of the red time on the main road. Depending on the province, either a green ball or green arrow or both flash, often at a more rapid speed than a light in a flashing beacon signal.
Variations include a solid green in the same direction as other signals with a solid red, with the green obscured except to those in the left-turn lane s “Dallas Display” , and a flashing solid red used extensively in MI or flashing red arrow used in DE and MD in various signal configurations in the left-turn signal – all are also covered at the aforementioned website.
Occasionally flashing yellow arrow beacons are used, combining the meanings of an arrow sign and a flashing solid yellow beacon. Feb 24, A: Now obsolete, these meant to watch for turning traffic across the crosswalk whereas a solid “WALK” meant that there should be none.
These were once used extensively in DC, and some may still exist in places. It means that an all-pedestrian phase is in effect, and no cars are going thru the intersection. It was implemented before pedestrian signals came into use.
If you are driving and see this, stop. In some European countries, red-yellow precedes green and often coincides with the yellow phase for cross traffic.
This might be to assist those drivers with manual transmissions “sticks”. This is old and is now rare. A: Strobes are installed within a red signal lens at intersections at which a signal is not expected, such as after a long stretch of a high-speed highway with no signals.
The strobe light is there to call attention to the red light. In some instances a stand-alone red signal with a strobe is used. The strobes are either linear across the red lens or circular around its edge. The frequency of the strobe light is much less than that which is required to trigger a response in people with epilepsy, so it is not a danger to them.
A: There are now traffic signals which use LEDs, or light-emitting diodes. Each lens in an LED signal contains many points of light the diodes , either in a centralized cluster covered by a lens or completely covering the signal head face. These signals are advantageous because they use considerably less electricity than those with incandescent bulbs, and because if there is a diode failure, only one point of light of dozens will go out, which is barely noticeable the signal can still function correctly, as opposed to if a bulb burned out.
Battery backups are often applied to these as it takes relatively little power to operate them until electricity is restored. These signals are now common throughout the United States. Taiwan has an animated version. Amsterdam, Netherlands has a version which counts down to the beginning of the walk phase.
These signals emit a chirp, ringing, or recorded voice to assist visually-impaired pedestrians. They are often found on college campuses. Aug 23, There is also a green-on-top signal on MA-3A in Billerica, but it is not an inverted signal; rather, it is a five lens vertical left turn signal without the red and yellow circular indicators, leaving only green, yellow left arrow, and green left arrow, from top to bottom.
It is a work by Pierre Vivant in London, England. Aug 26, These are also located in places where an obstruction might obscure a vertical assembly, and are also used in various business districts for aesthetic purposes.
Ramp meters are traffic signals placed along freeway entrance ramps to control ramp traffic in order to reduce congestion on the freeways to which the ramps lead. Feb 16, A: If a signal is used where roads intersect at a sharp angle, or there are multiple sets of signals with different cycles in multiple succession, fresnel lenses, which direct light in a specific direction, may be used fresnel lenses are also used in lighthouses and theater spotlights in a signal head generically called “optically programmable”.
The 3M company made signals like this which they called “High Visibility Signals” – an earlier model has conspicuously-large light housing, while a later model Model resembles more conventional signals.
There are other ways of obscuring signals in these instances, such as louvers slats. Mar 22, A: A protected left turn is when a left turn signal displays a red arrow or solid when the green arrow or yellow arrow or solid is not lit; the left-turning vehicle must wait for a green left arrow to turn.
Some places, notably MA, use a left turn arrow for permissive movements instead of protected movements. Sep 9, A: The following places, all but three in the U. Jun 19, I also just misses WA in many places along the Columbia River I just misses NJ at the western interchange with I See also 6. I just enters NY see 6. I and I running together miss MI by less than a mile in three different places: I does enter AZ by a significant distance in the NW part of the state but is often overlooked since it traverses no significantly-sized towns nor has interchanges with any major roads.
Not listed are routes in the US which come very close to Canada and Mexico, which obviously do not enter those countries. Two roads in South America often mentioned as widest in the world actually have fewer lanes: Avenida 9 de Julio part of National Route 14 in Buenos Aires, Argentina, has 16 May 6, A: The following movies and television shows contain significant amounts of open-road content all U.
Feb 9, A: Auto trails were a system of roads prior to the creation of numbered routes. Some unofficial state websites also have auto trail sections see Section 5.
A: “Galloping Gertie” was a bridge on WA 16 across the Tacoma Narrows in Tacoma which, due to its poor design, allowed the crosswinds to twist it apart.
Nov 1, A: Throughout time, there have been various definitions: 1. A two-way center left-turn lane 2. In the early 20th Century, a center lane of three in rural areas which traffic going in either direction could use to pass these were mostly obsolete by the s, though they could be found in MA into the s 3.
The inner lane of two in a single direction on a three-lane road where the opposite single-lane direction is permitted to use it to pass. Lane markings, from left to right and the single lane carrying oncoming traffic, would be white solid line, [lane], part-dashed-part-solid yellow line with the dashes on the left, [suicide lane], white dashed line, [lane], white solid line. A reversible lane usually controlled by lane signals These are still located in most major U. The shoulder when used as a travel lane during rush hour primarily metro Boston, MA 6.
A roadway with barriers close on each side. The above, especially definition 1, may also be referred to as “chicken lanes” in certain parts of the U. There are variations of these facilities, roadways which carry traffic in one direction or the other, depending on variables. A: This is a lane which may be on one roadway of a divided highway or another depending on the position of a moveable barrier. A history of pavement markings in the U. The report also includes other information about pavement markings, both in the U.
They are located in various locations throughout the world, notably in the Seattle, WA, U. A: This has one of many names depending on the region: Berm, boulevard, boulevard strip, city strip, devil strip, grassplot, lawn strip, long acre, nature strip, neutral ground, parking, parking strip, parkway, planting strip, side strip, terrace, tree belt, tree lawn, verge.
Some of these terms also refer to a median or a paved shoulder. Apr 21, This is called a “helix”, and is used usually when a grade is steep enough that a direct route would be too impractical, occasionally at a tunnel entrance. It is commonly used on railroads. Jun 11, These were built to save on construction and mantenance costs, as in this configuration only one set of buildings is required for both directions of the highway. A: The following Interstate and US routes are signposted with directional plaques consistent with their parity even-numbered routes signed E-W and odd ones signed N-S in some places and not consistent evens signed N-S and odds signed E-W in other places, the exceptions listed, or for 3-digit routes, simply have different sets of directions in different places:.
US is a special case in that it is always signposted N-S, yet each direction switches to the opposite one in Elizabethton, TN. A: The following have said sections; unless otherwise noted, direction indications are continuous from the adjacent section s which are signposted more logically e.
EAST for the direction of the route going west in the section in question but east most everywhere else : I, N. MA US, W. NY posted as N-S; see QC Other less-important roads have brief sections like this; in these cases, because the opposite-way section is so short, the direction indicators are usually consistent with the general alignment of the route, not the alignment of the short opposite-way section.
Sometimes there are simply no direction indicators within the opposite-way section. There have also been instances of directions being replaced by destination cities, such as St. Double-decked freeways structures with one roadway directly above the one for the opposite direction are fairly common, but double-deck surface streets are not as common.
Road designators are the type of road description, after the name of the road. They vary from simple words like “street” and “avenue” to fancy ones used in housing subdivisions. Often times during a sports championship, threads come up stating the roads, singly-designated or otherwise, which connect the venues of the teams, and variantly a related neutral venue such as with the Superbowl in the NFL , although sometimes the threads only discuss veunes of teams in the same division.
Jan 16, Many m. Finally, searching flea markets, garage sales, and used bookstores sometimes produces results. A: There are a great number of mapping websites such as MapQuest. These have greatly improved since their launches. Although these are not updated frequently, they are still useful for finding wandering rural roads and observing complex interchanges, especially at the largest scale A: Most companies which produce these programs tend to use the same sources, notably the U.
These companies might also use state DOT documents as data. Errors persist because companies only sporadically update their products using their sources, and, of course, these updates depend on the original sources being updated. Apr 3, These range from fully-signed well-maintained systems with numbering guidelines to minor roads with only internal route designations. Jun 9, Almost all of those jobs require at least a high school diploma and most require a bachelor’s degree from an accredited college.
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Note: The FAQ has not been revised since Much of the information is also available at Wikipediawhich has a road sectionand may be more up-to-date. Any inquiries may be submitted via e-mail see Question at bottom.
September 26, If you are having trouble finding a subject in the table of contents below, a text search of this document may be helpful. If reading this on the World Wide Meaning of canada day – meaning of canada day, choose Edit: Find or other similar command from the toolbar in your browser. Note: Map references are now given in latitude and longitude, due to most online mapping services easily incorporating нажмите для деталей data.
What is the difference between limited access and controlled access? Are there plans for Interstates in Alaska or Puerto Rico? Are there any freeways in Alaska or Puerto Rico? What is it designated? Usajobs government jobs federal jobs mndot road conditions 5e these a danger to people with epilepsy? Read usajobs government jobs federal jobs mndot road conditions 5e.
Sep 13, A: The charter is as follows: misc. All such commercial or advertising posts should be brief, should not be posted repeatedly and must be clearly related to the topics the group is meant to discuss. Frequent reposting of the same or similar articles is specifically prohibited.
A site with links to nearly all active U. License plates : Obviously license plates are visible anytime one uses a road. Geographical names : These names arise when posters discuss the ownership of a certain road or the style of boundary signs. A compilation map with names created by two or more U. A listing of the most frequently misspelled U. Government units : These come up due to the usajobs government jobs federal jobs mndot road conditions 5e reasons as geographical names.
Posters from areas without certain units become confused over their meanings when they are mentioned. The United States Bureau of the Census assigns two main types of unit below the county-level: Municipalities and townships. Municipalities are governments that are traditionally based around a single concentration of population. Most municipalities have an elected council and sometimes a mayor. Townships are direct divisions of counties. They exist only in the Northeast and Midwest U.
This “town” is not to be confused with the more general meaning of “town” больше информации. A special type of municipality is the independent city. These are cities separate from any county. In the United States, the independent cities are Baltimore; St. Washington is wholly within the District of Columbia and therefore separate from all states as well as counties DC has had no counties for a long time.
Counties have “collectors”, those who make a roster of ones visited. Many roadgeeks travel as many roads as they do because they are county collectors. A list of each state’s smallest municipality per the U. Area codes : Usually a secondary off-shoot of the above. ZIP codes : Similar to area maple syrup prices canada border discussion.
Time zones : These are usually mentioned in reference to signs designating them or to old maps which show former boundary alignments. Apr 5, A: There are many. Jul 13, A: Here are some related newsgroups: misc. Counts for selected urban U. These differ from frontage roads usajobs government jobs federal jobs mndot road conditions 5e that приведу ссылку are always one-way freeway-grade, whereas frontage roads can have at-grade intersections and driveway access.
Most U. Sometimes the lane is named using the minimum number of occupants required, e. A list of these in the U. See Section See Question 7. It was originally part of the Emergency Highway Conservation Act.
See also Question 3. Common usage in m. This term refers to a stretch of surface road that connects two different freeways, or two different stretches of a single one, without any direct connection via an interchange. Usually, these roads are filled with traffic lights, gas stations, fast food joints, etc.
The original example is in Breezewood, Pennsylvania, where I follows surface US 30 for a quarter mile where it meets the Pennsylvania Turnpike. Breezewood is the subject of a documentary by Jason Hutt called Breezewood, Pennsylvania see Oct 3, A loop or spur off a highway into the center of a town. Business routes generally have the same number of the main highway, but have special “Business” signs. Most interstate business routes are surface streets, usually old alignments of US highways.
Sometimes but not often Interstate business routes are referred to as читать больше Interstates” in certain areas. US and state business routes are often the original route through the usajobs government jobs federal jobs mndot road conditions 5e. Jul 18, /14579.txt Button copy is a term used to describe letters and characters on signs with several inlaid reflectors in them, providing better visibility at night. States started phasing them out on signs at the end of the 20th Century, opting for reflective sign sheeting for the whole sign instead.
Jun 27, Usually associated with the Interstate Highway system, usajobs government jobs federal jobs mndot road conditions 5e control city is usually identified as the city on a sign which drivers are most likely to be headed.
They appear as the bottom city on distance signs, on “pull-through” BGSes, and in signs leading to the freeway at interchanges. A: The longest distance on a conventional mileage sign, and one of only three four-digit instances, is probably miles for Los Angeles on I in NM. For non-conventional control cities, there are signs at highway termini which list distances to the other terminus.
See also Mar 25, Jun 16, To revoke a number from a particular highway. Normally this is accompanied by downloading to the next lower government body, although sometimes it remains as a secret state route, canada day celebrations grande prairie a US route becomes a state route. Interchanges are grade-separated intersections with one-way ramps connecting the two roads. They are often also called “exits” though that term may also apply to a single off-ramp road carrying traffic from the freeway to the crossroad.
One of the more talked about types of interchanges, a SPUI single-point urban interchange looks like a standard diamond interchange, but the ramps work in a much different way, allowing traffic to flow easier by making opposing left turns concurrent. Mar 11, A: In the U. There are 37 miles between Exit 4 Bonneville Speedway and Exit 41 Knolls on I основываясь на этих данных western Utah, the longest stretch on both a free highway and a publicly-numbered highway Florida’s Turnpike is officially FL but there are no references to that in the field.
There are also no services between these two I exits, just a pair of rest areas the two Florida’s Turnpike stretches listed above both have a median service area along them.
See Question 6. Jun 10, It is used to find the information about an exit before one exits. Sometimes exit lists are also made for surface streets with some degree of access control for example arterials with jughandles in New Jersey.
The exit lists are typically made by people who want to make them roadgeeks. They use maps and personal experience when creating the exit guide. A few state departments of transportation make bare-bones text exit lists.
Some of the exit lists have services listed at exits, while usajobs government jobs federal jobs mndot road conditions 5e just list the exits. Most list the cities and towns the exit leads to. Детальнее на этой странице areas are usually listed.
Nov 18, All locations in North America unless otherwise specified. All numbered routes through the interchanges may not be identified. Hawaii generally names на этой странице interchanges, and many toll highways name their interchanges as well. An interchange between two roads whose ramps meet at at-grade intersections on a third level, those at-grade intersections being the only ones in the interchange.
