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Warrants for Traffic Control Devices
A warrant for any traffic control device (sign, signal or pavement marking) is the minimum criteria that must be met before such a device can be installed. Meeting a warrant does not mean a traffic control device must be installed. The Michigan Manual of Uniform Traffic Control Devices spells out these warrants to ensure that each device:
Traffic Signals have 11 warrants, at least one of which must be met before a signal can be installed. These warrants state the number of vehicles, pedestrians, crashes or combination of these that must exist before a signal can be installed.
Stop Signs have their own set of four Warrants:
Traffic Improvement Association
2709 South Telegraph Road
Bloomfield Hills, MI 48302
Phone: 248-334-4971
- Fulfills a need
- Commands attention
- Conveys a clear, simple meaning
- Commands the respect of road users
- Gives adequate time for proper response
Traffic Signals
Traffic Signals have 11 warrants, at least one of which must be met before a signal can be installed. These warrants state the number of vehicles, pedestrians, crashes or combination of these that must exist before a signal can be installed.
Stop Signs
Stop Signs have their own set of four Warrants:
- Intersections of a less important road with a main road where the normal right-of-way rule is unduly hazardous
- Street entering a through highway or street
- Unsignalized intersection in a signalized area
- Other intersections where a combination of high speed, restricted view and serious crash record indicates a need for control by the stop sign
Traffic Improvement Association
2709 South Telegraph Road
Bloomfield Hills, MI 48302
Phone: 248-334-4971