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''Please note that the above lock levels are subject to change, should situations warrant. Be sure to check here for current lock level criteria if unsure.'' | ''Please note that the above lock levels are subject to change, should situations warrant. Be sure to check here for current lock level criteria if unsure.'' | ||
===U-turns=== | |||
This is interim guidance for Nevada, until such time as National standards are agreed upon. | |||
U-turns on *two-way* Primary Street through Major Highway type roads may be enabled in either of the following two circumstances: | |||
*1) The U-turn is _explicitly_ allowed by signage; or | |||
*2) The U-turn is otherwise legal and safe, and there is _at least_ 10.1 m (33 feet) from the left edge of the departure lane to the "destination" curb. This can include any median that may exist to the left of the departure lane. (The measurement is intended to accommodate the turning radius of most passenger vehicles.) | |||
It should be noted that in Nevada per the NRS, U-Turns are legal where safe and not expressly prohibited by a sign indicating "NO U-Turn" (or the typical U-Turn arrow with a red circle and slash over it). Even if there is a sign at a signal which shows a left turn arrow and the word "ONLY" under it, as long as there is not ''also'' a sign indicating no U-Turn permitted, then it is allowed as long as it is safe. See #2 above regarding minimum size. | |||
Do NOT make a point of enabling all U-turns valid under this guidance, only as you encounter them and they are necessary. Do not enable U-turns on Street type roads. This guidance could change in the future. | |||
<!---- DO NOT MODIFY BELOW ------ DO NOT MODIFY BELOW ------ DO NOT MODIFY BELOW ---- | <!---- DO NOT MODIFY BELOW ------ DO NOT MODIFY BELOW ------ DO NOT MODIFY BELOW ---- | ||
Revision as of 01:23, 27 September 2021
While there has been a little bit of confusion regarding the road types based on common sense. If you read the wiki, Nevada uses the DOT guidelines for the purpose of navigation routing and not based on the given name of the road. Nevada has a lot of graded gravel roads which are technically considered primary roads within WME. Before changing a road type to anything less than that which is assigned in the Nevada Department of Transportation (NDOT) functional classification check with an Area Manager, State Manager, Regional Coordinator, or Country Manager within the Nevada Forum.
Local naming variations
Nevada uses NV-##, and NV-##X for all state routes and their spurs, loops, etc. (e.g. NV-89, NV-17M). When working on an area, if you encounter a road with the old SR-## naming, please take the time to change that name to reflect the NV-## name. This includes alternate names, if you notice them.
It should be noted that while we use the NV-xxx road designation for better clarity for drivers using Waze, NDOT does not use it. When you are verifying a state route/highway number against an official source, you'll see "SR-89" instead of "NV-89", for example. This is ok, don't let that cause you concern. Just go ahead and use the NV-xxx designation (using the official route/highway number) when setting/correcting a state route number.
Functional Classifications
Nevada is following the Functional Classification (FC) system for the USA.
The following resource can help to determine the FC for some of the roads in Nevada:
- Nevada Functional Class Graphical Maps
- For historical purposes only you can Click here for archive version as of July 3, 2014. Do not use this as a reference for setting FC on roads in WME.
Lock Levels
In Nevada we have a set minimum standard for locking roads based on segment type. Any road of a certain segment type must be locked at least to the rank (level) in the chart below. Roads may be locked higher for protection and special situations (areas with construction, tricky design, frequent mistakes, imaging inaccuracies, and the like), but should not be locked lower.
A great time to implement these locks is while bringing the road types of an area into compliance with the current US road type standards (FC and highway systems). Lock the roads based on type after they've been set to current US road type standards.
| Segment Type | Urban Areas | Rural Areas | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Freeway | 5 | 4 | |||||||||
| Ramp | Highest Rank of Connected Segments | ||||||||||
| Major Highway | 3 | ||||||||||
| Minor Highway | 2 | ||||||||||
| Primary Street | 2 | ||||||||||
| Street | Automatic (1) | ||||||||||
| Private Road | Automatic (1) | ||||||||||
| Parking Lot Road | Automatic (1) | ||||||||||
| • • • • Ferry • • • • | 5 | ||||||||||
| |-|-|-|-|-|-|-|-|-| Railroad |-|-|-|-|-|-|-|-|-| | 2 | ||||||||||
NOTE: Streets directly involved in the Las Vegas Strip area should be minimum locked at one rank (level) higher than the above minimums, to protect that vital traffic corridor.
Please note that the above lock levels are subject to change, should situations warrant. Be sure to check here for current lock level criteria if unsure.
U-turns
This is interim guidance for Nevada, until such time as National standards are agreed upon.
U-turns on *two-way* Primary Street through Major Highway type roads may be enabled in either of the following two circumstances:
- 1) The U-turn is _explicitly_ allowed by signage; or
- 2) The U-turn is otherwise legal and safe, and there is _at least_ 10.1 m (33 feet) from the left edge of the departure lane to the "destination" curb. This can include any median that may exist to the left of the departure lane. (The measurement is intended to accommodate the turning radius of most passenger vehicles.)
It should be noted that in Nevada per the NRS, U-Turns are legal where safe and not expressly prohibited by a sign indicating "NO U-Turn" (or the typical U-Turn arrow with a red circle and slash over it). Even if there is a sign at a signal which shows a left turn arrow and the word "ONLY" under it, as long as there is not also a sign indicating no U-Turn permitted, then it is allowed as long as it is safe. See #2 above regarding minimum size.
Do NOT make a point of enabling all U-turns valid under this guidance, only as you encounter them and they are necessary. Do not enable U-turns on Street type roads. This guidance could change in the future.