Overview
| This information is under consideration for the Illinois state wiki. It should not be considered official guidance. |
Content
Alleys are driveable roads that often provide access to the rear of a business or residence. They can be an important part of the map for routing purposes especially for places with rear access only and for drivers starting a route from an alley.
In the city of Chicago and the suburbs, do not delete already mapped alleys. Outside the Chicagoland area, alleys may be deleted if they are not necessary for proper routing.
Guidelines for Mapping Alleys in Illinois:
Public alleys SHOULD be mapped if they are named or they are the sole access to a business or residence.
Public alleys MAY be mapped if they are acknowledged by the municipality or Update Requests (UR's) and GPS tracks indicate the alley is regularly travelled.
If the above criteria are not met, careful consideration should be given to whether the alley should be mapped at all. If in doubt, always consult the area manager responsible for the segment and/or the state manager.
If the decision is made to map the alley,House Numbers and Stop Points should be nudged to ensure routing to the primary access point for the business or residence. It may also be necessary to nudge the Google Map pin. Often, imported house numbers have their markers placed too far to the back of the building, causing the app to route the user to alleys behind the actual residence.
Road type should be set to Parking Lot Road