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Stop Sign Implementation Traffic Control Devices Purpose Regulatory sign that is used to assign right-of way at an intersection. Only recommended for installation if specific guidelines are metin accordance with the Minnesota Manual on Uniform Traffic Control Devices (MnMUTCD). Stop signs should not be used for speed control or volume reduction and should not be installed on the major street unless justified by an engineering report. Source: FHWA Manual on Uniform Traffic Control Devices Effects Volumes Little or no effect. Speed Little or no reduction in speed, speed possibly increases due to drivers speeding up to make up for time lost at the stop sign. Traffic Noise and Air Noise is increased near the intersection due to the increase activity of acceleration. Air quality worsens due to deceleration, idling and acceleration. Traffic Safety Possible increase in crashes, possibly due to the stop signs being unexpected or deemed unnecessary, therefore encouraging rolling stops or by instilling a false sense of security in crossing motorists and pedestrians. Advantages • Inexpensive installation costs (do require continual maintenance costs). • Defines driver’s right-of-way. • Increase opportunity for pedestrians to cross the roadway. • May discourage cut-through traffic. Disadvantages • Can cause negative traffic safety impacts if sign is not warranted. • May result in mid-block speeding • Increasing levels of intersection control are associated with increased frequency of crashes. • Difficult to enforce full stop control compliance. • Could result in increase in speeds between the signs as drivers try to make up for lost time. Problems Targeted • At intersections where right-of-way is confusing. Design • Guidelines need to be met as established in the Minnesota Manual on Uniform Traffic Control Devices. • In most cases the street carrying the lowest volumes should be stopped to minimize the number of vehicles stopping.