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Neighborhood Traffic Management Program (NTMP)

Tools to Address Traffic Volumes and Reducing Vehicle Collisions

Stop Signs

R1-1 Stop sign

Installation of Stop Signs is governed by Warrants. The Manual of Uniform Traffic Control Devices states that ".STOP signs should not be used for speed control". They are included here as a possible tool for discouraging cut-through traffic in residential areas. They may also reduce collisions and severity of accidents (Source: Traffic Calming: State of the Practice - ITE, 1999)

They tend not to have much effect on mid-block speeds and can actually cause an increase. They tend also to have low compliance.

Unwarranted stop signs are not recommended.


Temporary Installation

Malibu, CA

Stop sign permanent installation

Permanent Installation


  • Can reduce accidents and severity.
  • Low cost.
  • Often viewed as effective or desirable by residents.


  • Requires Warrants for installation.
  • Minimal effect on mid-block speeds.
  • Should not to be used as a speed control measure.
  • Tend to increase traffic noise.
  • Violation rate high if low volumes on through street.
Summary of Effectiveness
Volume Reduction Unknown
Speed Reduction Yes
Safety Improvement Possible
Streets to Use On Collector, Local Local/Collector
Use on Bus Route Yes
Use with Curbs and Gutters Yes
Spot or Area-wide Use Spot
Emergency Service Access Issues None
Impacts on Arterials Possible
Change in % Truck Unknown
Environmental Changes Noise & Pollution
Dependence on enforcement Varies
Level of Violation Varies
Aesthetics and Landscaping No