A slip lane is a road traffic lane provided at an intersection to allow vehicles to turn at the intersection without actually entering it and interfering with through traffic. It is therefore not controlled by any traffic signals at that intersection. There are two types of slip lane - those where the lane continues into its own lane in the road which it turns into and those where the lane terminates at the point where it enters the road turned into.
To minimise risks of collision, slip lanes can be shaped to enter the traffic flow at a higher angle than the 45 degrees shown in the first sketch. Such lanes are called high entry angle slip lanes.
- "Pedestrians crossing slip lanes" (PDF). Main Roads Western Australia. September 2002. Retrieved 8 November 2015.
- "City Road Draft Master Plan" (PDF). Melbourne City Council. July 2015. Retrieved 8 November 2015.
- "Slip Lanes be gone". Matt L. 2 October 2015. Retrieved 8 November 2015.
- "Guidelines for the signing and layout of slip lanes" (PDF). NZ Transport Agency. November 1993. Retrieved 9 May 2017.
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