Knowledge Base

Traffic Calming

Category: Road/Street Issues


 For the most up to date information on Traffic calming, please visit us at


Other FAQs 

  • What data is used for traffic calming evaluations? 

Motorized vehicular volumes and speeds (mph), number of reported crashes in a 3-year period, number of pedestrian generators within 1-2 blocks, presence of sidewalks, neighborhood equity score, connection to existing plans 

  • What are the measures of success for the program? 

Reduction in reported crashes, reduction in volume, reduction in vehicular speeds (85th percentile). For more information and data about the successes of this program, please see here: 

  • Why wasn’t there a public meeting for this project? 

Traffic Calming Applications are submitted to us by your neighbors and fellow residents. The City will always inform the public of changes to roadways, but reserves the right to make safety improvements which have been deemed necessary and which will be beneficial to the greater good, even without input from the public. Public meetings usually occur if the project scope makes changes to parking or traffic operations (one-way conversions, diverters, etc.)  

  • Will this project affect parking? 

Reductions in on-street parking are possible depending on project scope, however, for most projects that include speed humps or tables there will be no changes to on-street parking. Drivers may park on top of a speed hump or table. During construction, it may be necessary to temporarily prohibit or reduce parking. Temporary no parking signs would be installed in advance.  

  • Can a stop sign be installed to slow people down?  

No. The MUTCD (Manual on Uniform Traffic Control Devices) states that stop signs shall not be used as a means of traffic calming/speed reductions. Stop signs shall be used to designate right-of-way. 

  • How do speed humps/tables/cushions affect emergency services and transit? 

There is a minimal degradation of response time (usually measured in seconds) of EMS and transit vehicles associated with the presence of speed humps and tables. The Department coordinates projects with Public Safety and Pittsburgh Regional Transit. On primary emergency response routes identified by Public Safety, DOMI deploys speed tables for speed control measures. Speed tables are similar to speed humps but with a modified flat top that raises the entire wheelbase of a vehicle to reduce its speed which creates a more undulating traffic calming measure.     

  • People are parking on the sidewalk, what can be done?  

City code prohibits vehicles from parking or stopping on sidewalks. These infractions are ticket-able offenses and should be reported to the Pittsburgh Bureau of Police or the Pittsburgh Parking Authority.  

Updated 9/6/2023 9:53 AM
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