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Road types

984 bytes added, 6 months ago
added unsigned connection examples, and moved unpaved checkbox to the end of the public roads section
* [[Creating and Editing a roundabout]]
* [[At-grade connectors]]
 
Road types do not affect naming. See [[Road names]].
== {{@|Public roads}} ==
====Street {{Street|        }} {{Anchor|street|St|st}} {{@||Street}} ====
[[Image:RoadPicN4.jpg|right|400px200px]]
Any road for public travel which does not meet the criteria for any other type shall be classified as a {{Street}}. Shown as "local roads" in some functional classification maps; not shown at all in others.
===={{@|Passageway}}====
{{Anchor|Narrow Street}}[[File:Alley.gif|right|100px200px|alt=alley]]{{As of |2018|10|31|df=us}}, the new road type {{Passageway}} should not be used in the USA. This road type is designed for other parts of the world, where some public roads accomodate only vehicles narrower than cars. At this time, DO NOT use the {{Passageway}} road type in the USA without explicit champ approval for each instance.
==== {{@|Service Road}} ====
}}
:For guidance on mapping service roads AKA frontage roads, see the [[House_Numbers_on_Service_Roads|service road page]] and the [[#Frontage roads|section above]].{{clear}}
 
=== Unpaved checkbox [[File:Checkbox.png|50px]]===
 
The [[FIle:Unpaved attribute.png|90px]] checkbox is an attribute that can be applied to any road type. It indicates that a road is not paved with asphalt or concrete. The unpaved attribute affects routing over drivable road types; it does not really affect non-drivable road types, since the client does not use them for routing. Based on user preference, destination, and other settings options, the Waze client may avoid routing them over otherwise drivable segments when the 'unpaved' attribute is checked.
[[File:RoadPicN6.jpg|right|300px|RoadPicN6.jpg]]
==== When to select the Unpaved attribute ====
 
'''Any drivable road which is not paved with asphalt or concrete''' should have the Unpaved attribute box checked.
 
<sub>Check your [[Mapping resources|state's page]] for details on whether there are additional guidelines for roads that are in '''''uncommonly poor condition by local standards''''' or contact your [[Regional Coordinator]] for further guidance.</sub>
 
==== User setting options for the Unpaved attribute ====
This attribute has the unique property in that Waze users may select when not to be routed over unpaved road segments. Users may choose:
* 'Dirt roads - Don't allow' - Avoids through-routing on all unpaved roads
* 'Dirt roads - Avoid long ones' - Avoids through-routing on long unpaved roads
* 'Dirt roads - Allow' - Allows through-routing that could include unpaved road(s) (i.e. ignores whether roads have the unpaved attribute checked)
:''The Client still refers to these settings as "Dirt Roads", but it will be updated soon to read "Unpaved Roads". Rest assured they apply to this [[FIle:Unpaved attribute.png|90px]] attribute, and not to the {{Off-road}} type.
=== {{Anchor|FC cross reference}} {{@|Quick reference chart}} ===
===Exceptions===
Occasionally, if deemed necessary for proper routing, a particular road's type may be set higher than as prescribed in these rules. If a road has a higher or lower type than what's specified in these rules, there may be a reason for it.
Apart from changing the nominal road type, level {{rank|routing}} editors can also change the [[Creating and editing road segments#Special properties|routing road type]] to one type higher or lower, which only affects [[Routing server#Changes in routes due to different route lengths|long-distance aspects]] of road type behavior while maintaining the same appearance, [[How Waze determines turn / keep / exit maneuvers#Best Continuation|best continuation]] and [[Detour Prevention Mechanisms|detour prevention behavior]] of the nominal road type. These exceptions to the rules should be reviewed with local leadership before implementation.
Special rules are used to determine the road types of [[Creating and Editing a roundabout#Road type|roundabouts]] and [[At-grade connectors#How to label the connector type|at-grade connectors]].
 
Road types do not affect naming. See [[Road names]].
====Continuity====
[[File:35-71.png|thumb|300x300px|SR-435 has the Minor Arterial functional class , so it would normally have the Minor Highway road type in Waze. Since it is signed as the way from one Freeway (US-35) to another (I-71), it has the routing road type Freeway, enabling the routing server to use it on routes from WV to IL.]]
[[File:M55-66.png|thumb|300x300px|These Michigan State Trunkline Highways have the Minor Arterial functional class, so they would normally have the Minor Highway road type. However, even without signage indicating their longer-distance use, they have been upgraded to Major Highway in order to be used in routes between southwestern Michigan and the Upper Peninsula.]]One common reason for a road to be set to a higher type is for the purpose of maintaining '''continuity''' between two roads with higher types. Promotion for continuity is usually indicated by signage: A certain less important road is signed as the way to get between two different more important roads. When promoting for continuity, the effective road type of the connecting road should match the lower of the two roads that it connects. This prevents Waze from pruning out valid routes.
For example, a freeway exit from I-70 is signed as "Exit 142: US-40 / Gratiot", indicating that this is the intended way to get to US-40, with Principal Arterial functional class. Between the ramps and US-40 is CR-30 with Local functional class. The rules on this page would normally dictate that this road be set to Primary Street, but in long-distance routing it may be removed from consideration. This can be prevented either by assigning the Major Highway type outright or by assigning the Minor Highway type with a +1 routing road type, which would cause it to be treated like a Major Highway for long-distance routing.
Certain situations may require continuity upgrades even without signage to support them. Examples include but are not limited to:
* Sparsely populated areas connected by long roads with lower functional class
* Places where highway designations end abruptly, such as jurisdictional boundaries
* Alternate routes used as detours for main highways subject to frequent or long-term closures
* Urban or suburban areas in the midst of redevelopment, where functional class may be out of date
* Connecting roads that may be too short to be noticed during state functional class assignment
 
When promoting for continuity, the effective road type of the connecting road should match the lower of the two roads that it connects, similar to type selection for at-grade connectors. This practice prevents Waze from pruning out valid routes, and in extreme cases can mean the difference between getting a good route and getting no route at all.
 
 
=== Unpaved checkbox [[File:Checkbox.png|50px]]===
 
The [[FIle:Unpaved attribute.png|90px]] checkbox is an attribute that can be applied to any road type. It indicates that a road is not paved with asphalt or concrete. The unpaved attribute affects routing over drivable road types; it does not really affect non-drivable road types, since the client does not use them for routing. Based on user preference, destination, and other settings options, the Waze client may avoid routing them over otherwise drivable segments when the 'unpaved' attribute is checked.
[[File:RoadPicN6.jpg|right|300px|RoadPicN6.jpg]]
==== When to select the Unpaved attribute ====
 
'''Any drivable road which is not paved with asphalt or concrete''' should have the Unpaved attribute box checked.
 
<sub>Check your [[Mapping resources|state's page]] for details on whether there are additional guidelines for roads that are in '''''uncommonly poor condition by local standards''''' or contact your [[Regional Coordinator]] for further guidance.</sub>
 
==== User setting options for the Unpaved attribute ====
This attribute has the unique property in that Waze users may select when not to be routed over unpaved road segments. Users may choose:
* 'Dirt roads - Don't allow' - Avoids through-routing on all unpaved roads
* 'Dirt roads - Avoid long ones' - Avoids through-routing on long unpaved roads
* 'Dirt roads - Allow' - Allows through-routing that could include unpaved road(s) (i.e. ignores whether roads have the unpaved attribute checked)
:''The Client still refers to these settings as "Dirt Roads", but it will be updated soon to read "Unpaved Roads". Rest assured they apply to this [[FIle:Unpaved attribute.png|90px]] attribute, and not to the {{Off-road}} type.
== {{@|Other drivable roads}} ==
 
=== Off-road / Not maintained Road {{Off-road|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}} {{anchor|Dirt|Dirt Road|Dirt road|Dirt road / 4X4 trail|4X4 Trail|4X4 trail|4x4 Trail|4x4 trail|dirt road}} {{@||Off-road / Not maintained road}} ===
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