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Road types are important for both routing and map display:
- When planning a route, major roads will sometimes get priority over smaller roads.
- For longer routes, some lower road types will often be ignored outright in favor of higher-type roads.
- Since freeways are given the highest priority of all, having other high-type roads is necessary to provide viable alternatives to the routing server in case freeways are clogged with traffic.
- When viewing the map, more important roads should appear at the far zoom levels. Without proper types, the zoomed out display can be misleading.
The below.and road types each have their own special rules. The , , and types are designated using a set of minimum criteria, as explained
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 type than set forth in these rules, there may be a reason for it.Freeway section). Promotion of connecting roads preserves routing continuity and prevents Waze from pruning out valid routes.
In rare cases, a particular road may require a lower type than as prescribed in these rules. Contact your regional coordinator before lowering the type of any road past the bounds of the rules.
Road types do not affect naming. See Road Naming (USA).
A highway is an arterial road.
Highways roads are the backbone of the traffic network. They serve a dual purpose:
- to carry traffic over long distances, from one city to another, and
- to carry traffic from collector roads to freeways, where applicable.
Several systems of numbered highways exist in the United States:
- the Interstate Highway System
- the United States Numbered Highways
- various State Highway systems
- various County (or Parish) Highway systems, in some states
Waze's definition of "highways" includes Interstate, US and state highways, but it also includes all other roads that are classified as arterial roads under the FHWA functional classification lists maintained by state governments, even though they may not be part of any numbered highway system.
Functional classification of roads is determined more by how the roads are used than by how they are constructed, and the criteria are slightly different between urban and rural areas. Because of this, some urban roads may be classified as arterials and have highway types in Waze, even though they appear very similar to other non-highway roads. In using functional classification and numbered highway systems, the decision on which roads should be classified as highways rests ultimately with the governments that build and maintain the roads.
Waze distinguishes three classes of highway:, , and . elevation of the road below that of the runway and ensure there is no connection. Draw each runway as a single segment and lock it to prevent lower-ranking editors from attaching a road. Do not form junctions where runways cross each other. Name each runway using the word Runway and the runway designations with the lower number first and a hyphen between runway numbers (e.g., "Runway 16R-34L".) For the "City" field of runway segments, check "None" to avoid any chance of city smudging.
Despite its title, the Runway/Taxiway road type should never be used for an aircraft taxiway because it would render the same as a runway and confuse the display. Taxiways not intended for frequent access by street vehicles should not be mapped at all with any road type. Taxiways that do commonly serve street vehicles as well as aircraft, for example at fly-in communities, may be mapped as Streets provided they remain disconnected from any runway.
Many residents of urban communities have very short driveways between the named road that they live on and the garage or carport on their property. In general these very short segments should not be mapped, because they have no name, would clutter the map in the client app, take a lot of time to draw, and would greatly increase the overall size of the Waze mapping database with very little return.
In the case of very long driveways, it may helpful to a driver to see the driveway mapped on the client app or even necessary for Waze to determine how to reach the destination. In those cases it may be prudent to add a road. See the article on Driveways for more information.