A '''partial restriction''' is entered on a segment or a turn restriction. A partial restriction is often referred to as a '''time-based restriction''' ('''TBR'''); specifically as a '''time-based segment restriction''' ('''TBSR''') or '''time-based turn restriction''' ('''TBTR'''). They are used to allow or to restrict certain vehicle types to be routed or prevented from routing on that segment or turn. The TBSR or TBTR means the segment or turn will tell the routing algorithm that some '''vehicle type(s)''' are forbidden or allowed on a segment or turn; or some or all vehicles are forbidden at '''certain times, or on certain days or dates''', or both; that certain special types of travel are allowed.
Note currently only private car and
taxi are allowed to be selected in the app; therefore restrictions preventing trucks or buses from a segment or turn do not have any effect in the app. Setting a segment to be a bus only segment will prevent any user from being routed and is the equivalent of a prohibited all private cars and taxi restriction.
Partial restrictions are often used for bus lanes, turns that are forbidden during rush hour, segments that change direction for morning and evening rush hour, bridges and ferries that are only available during the day, and roads that are closed in winter.