Speed Limit Changes and Studies

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​​​​​​​​​Twice annually, the Phoenix Street Transportation Department does a comprehensive review of Phoenix City Code, Section 36-158, Schedul​e I - Local Speed Limits. On October 16, 2024, the Transportation, Infrastructure, and Planning Subcommittee recommended City Council approval of record keeping and local speed limit changes at the 17 locations summarized below.​​​​​​ City Council will vote on the recommended changes at the October 30, 2024, Council meeting. ​Legal speed limits are established by law (in Arizona) and may be changed when justified on the basis of a traffic investigation and engineering judgement. When setting a speed limit, the City and other agencies typically consider a range of factors such as: pedestrian and bicyclist activity, crash history, land use context, intersection spacing, driveway density, road geometry, roadside conditions, roadway classification, traffic volume, and observed speeds. 

Prima Facie Speed Limit 25 mph At All Times​

Cholla Street, Tatum Boulevard to 56th Street
Recommend reduction from 30 mph to 25 mph by a traffic engineer based on a traffic study and number of front-facing homes.​​ Traffic Study Summary

Mountain View Road, 19th Avenue to 15th Avenue
Recommend reduction from 30 mph to 25 mph by a traffic engineer based on a traffic study and number of front-facing homes. Traffic Study Summary​

Sweetwater Avenue, Cave Creek Road to 32nd Street
Recommend reduction from 35 mph to 25 mph by a traffic engineer based on a traffic study and number of front-facing homes.

Sweetwater Avenue, 32nd Street to 42nd Street
Recommend reduction from 30 mph to 25 mph by a traffic engineer based on a traffic study and number of front-facing homes.

40th Street, Mountain View Road to Shea Boulevard
Recommend reduction from 30 mph to 25 mph by a traffic engineer based on a traffic study and number of front-facing homes. 

55th Avenue, McDowell Road to Camelback Road
Recommend reduction from 30 mph to 25 mph by a traffic engineer based on number of front and side-facing homes. Traffic Study Summary


Prima Facie Speed Limit 30 mph At All Times

Lafayette Boulevard, 44th Street to 64th Street
Recommend reduction from 35 mph to 30 mph by a traffic engineer based on a traffic study and number of front-facing homes. Traffic Study Summary​

Oak Street, 24th Street to 32nd Street
Recommend reduction from 35 mph to 30 mph by a traffic engineer based on a traffic study and number of front-facing homes. Consistent with adjoining segments. Traffic Study Summary

Princess Drive, 68th Street to Scottsdale Road
Recommend reduction from 35 mph to 30 mph in conjunction with upcoming lane modifications. Traffic Study Summary

15th Avenue, 0.25 south of Magnolia Street to Bethany Home Road
Recommend reduction from 35 mph to 30 mph by a traffic engineer based on a traffic study and number of front and side-facing homes. Consistent with segment to the north. ​Traffic Study Summary

52nd Street, Cactus Road to Thunderbird Road
Recommend reduction from 35 mph to 30 mph by a traffic engineer based on a traffic study and number of front and side-facing homes. Consistent with segements to the south and north. Traffic Study Summary

65th Avenue, 2500 fee +/- of Dobbins Road
New construction. Not in previous ordinance.

68th Street, Princess Drive to Mayo Boulevard
Recommend reduction from 35 mph to 30 mph in conjunction with upcoming lane modifications. Traffic Study Summary




Prima Facie Speed Limit 30 mph from 7:00 a.m. to 4:00 p.m. on School Days

​Cactus Road, west bound 350 ft +/- east of 37th Avenue and east bound 350 ft +/- west of 37th AVenue
Removal of time-of-day speed limit reduction from ordinance. New speed feedback signs installed. ​

Ray Road, 400 ft north of Thunderhill Drive to 100 ft south of Mountain Sky Avenue 
Removal of time-of-day speed limit reduction from ordinance. New speed feedback signs installed.​


Prima Facie Speed Limit 35 mph At All Times

Estrella Drive, SR202 to 51st Avenue
Newly annexed portion of roadway. Not in previous ordinance. Traffic Study Summary


Prima Facie Speed Limit 35 mph from 7:00 a.m. to 4:00 p.m. on School Days

Greenway Parkway, 400 ft west of 7th Avenue to 250 ft east of 5th Avenue
Removal of time-of-day speed limit reduction from ordinance. New speed feedback signs installed. ​Traffic Study Summary

Prima Facie Speed Limit 40 mph At All Times

Deer Valley Drive, 56th Street to 450 ft east of 60th Street
New construction. Not in previous ordinance.

Tatum Boulevard, Mayo Boulevard to Deer Valley Drive
Recommend reduction from 45 mph to 40 mph by a traffic engineer based on a traffic study. Traffic Study Summary​

Van Buren Street, 56th Street to 500 ft east of Project Drive
Recommend reduction from 45 mph to 40 mph. Posted 40 mph to the west, and Tempe is reducing speed limit along corridor.