=== Parking Lots ===
Road types#Parking Lot Road |parking lot roads]] in a parking lot serves three purposes:
*it allows Waze to provide door-to-door directions within the lot ; *it allows Waze to recognize that the client is off the main road, avoiding erroneous traffic reports. *using the special road type prevents Waze from routing traffic through the parking lot.
For marking parking lots with places see the information on the [[Places/Parking lot|Parking Lot Place type]]. Parking lot roads are not limited to use with the parking lot place type , though they are often used together.
The Parking Lot Road type exists to allow the mapping of parking lots, while discouraging the routing server from using them for through navigation. Waze applies a [[Routing penalties|transition penalty]] for leaving a Parking Lot Road segment to enter another road type. This penalty decreases the chance that Waze will route through a parking lot as a shortcut but allows better navigation in and out of a parking lot. It is advised not to mix road types within a parking lot to avoid triggering the transition penalty unnecessarily.
Shopping Centers ====
When mapping a large parking lot (e. g., at a shopping center) consider mapping only the following:
*Main entrances from the roads outside the parking lot *Lanes that run along storefronts *Lanes at the edge of the lot which run alongside public roads (prevents Wazers in the parking area from "snapping" to the public road, and then sending it incorrect speed information) *Primary travel lanes that serve to get people from one area of the lot to another
Remember, the goals here are usability and simplicity. When in doubt, imagine yourself in a car in the lot at various points, and ask yourself what the most efficient way would be to get to a store at the other end of the lot, or to exit the lot and get back on a main road , with as few convolutions as possible. The lanes that are used the most in this thought experiment should be mapped, with the rest being omitted. You can turn on the GPS points layer ([[ Shortcut key]] Shift-G) to see where traffic is concentrated to get a sense of what needs mapping.<br/ >[[File:ParkingLotRoad ShoppingCenter.png| 714px]] In particular, '''do not ''' map every single lane, and especially not every single parking space (it has been done!). This serves no purpose but to clutter the map, confuse directions, and put an unnecessary burden on both the client and server hardware. Remember usability and simplicity are #1. Your editing time and expertise can be better used elsewhere in the map.
==== Small Parking Lots ====
Parking lots that serve a small number of businesses should be minimal: enough to give the driver correct directions into and out of the lot , and navigate to a particular business. Very small lots with one entrance and one exit could even be represented by a single segment running through the parking area (either a diagonal across the lot if it connects to roads on each side, or a single, flattened curve for strip mall-style lots with entrances and exit along the same road).
To permit a route to be given to exit a small parking lot from the same point the parking lot was entered, [[Turn_restrictions#U- turns|u-turns ]] may be enabled at the ends of the parking lot road. This is particularly relevant where a single parking lot segment connects two different street segments such as is common for many corner [[Places/Gas_Station|gas stations]].
==== Drive-Through Lots ====