How do speeds impact safety?
The speed at which a vehicle is traveling before a crash is a major factor in the seriousness of the crash. High speeds are particularly hazardous
for pedestrians. When a pedestrian is struck by a moving vehicle at 23 MPH, the risk of death is 10%. When struck by a vehicle traveling at 50 MPH, the risk of death is 75%. Safer speeds is a primary objective of the Safe System Approach.
What makes DOT&PF decide to
consider a speed limit change?
Sometimes DOT&PF decides to change a speed limit as part of the design process when a road is reconstructed. Other times, the process begins with a
formal request made by a community or neighborhood.
What is the process for deciding whether to change a speed limit?
After receiving a formal speed limit change request, DOT&PF may decide to move forward with a speed study, which examines a variety of factors to determine if a change is warranted. The speed study report will include a recommendation about whether or not a change is warranted and it may also
recommend additional outreach to determine community support or engineering changes, like narrower lanes, to influence driver behavior.
What is a speed study?
A speed study is an engineering and traffic investigation that considers a variety of factors including crash history, potential conflicts between different users like vehicles and pedestrians, potential conflicts between vehicles including at driveways and side streets, current driver speeds, and more to determine if a speed limit change is warranted.
How effective are posted speed limit reductions at reducing driver speeds?
Studies have shown that most drivers will choose the speed that gets them where theyʼre going as quickly as possible without endangering themselves, others, or their property. Posted speed limits are one factor, but not the only one, and not the most important one when it comes to the speed people drive. According to a report published by the Federal Highway Administration that looked at driver behavior and crash data from 100 sites in 22 states where speed limits had been lowered or raised, changing speed limits had little effect on how fast people drive. One of the conclusions of the report states, “Changing speed limits alone, without additional enforcement, educational programs, or other engineering measures, has only a minor effect on driver behavior.”
Why is DOT&PF considering a speed limit reduction on Tudor & Muldoon?
In response to an increase in pedestrian deaths across Anchorage, the Anchorage Assembly passed a resolution in October 2024 calling on the Municipality of Anchorage and DOT&PF to “take action in response to pedestrian deaths” including “[l]owering speed limits by at least 10 miles per hour, not to exceed 35 miles per hour, on corridors where fatalities have occurred.” The Vision Zero Task Force, a working group made up of representatives from DOT&PF, the Municipality of Anchorage, the Anchorage Police Department, AMATS, and others, conducted an analysis of high-crash corridors and identified this corridor as the top priority for a speed limit evaluation.
What is the crash history on this corridor?
This corridor has a higher than average crash rate, including a high pedestrian crash rate. DOT&PF analyzed crashes between January 2020 and December 2024. During this period there were 2,224 crashes on Tudor and Muldoon Roads, including 42 serious injury crashes and 10 fatal crashes. Of the 10 fatalities, six were pedestrians and one was a bicyclist. Of the 42 serious injury crashes, 11 involved a pedestrian and three involved a bicyclist. After the end of that study period, through December 2025, there were two additional pedestrian deaths along the corridor.
What data has been collected?
Data was collected by DOT&PF staff in the summer during low volume hours under fair weather conditions. Here are a few highlights:
The data indicate that reducing the speed limit alone will have a limited effect on driver speed. For speeds to be effectively reduced, other efforts should accompany a lower speed limit including engineering changes, education, and/or increased law enforcement. The report recommends further outreach to understand better how a lower speed limit would change how people use this corridor.
How does DOT&PF decide whether to change a speed limit?
Sometimes DOT&PF decides to change a speed limit as part of the design process when a road is reconstructed. Other times, the process begins with a formal request made by a community or neighborhood. When considering a speed limit change, DOT&PF may decide to move forward with a speed study, which examines a variety of factors to determine if a change is warranted. The speed study report will include a recommendation about whether a change is warranted.
What is a speed study?
A speed study is an engineering and traffic investigation that considers a variety of factors to determine if a speed limit change is warranted. Alaska Statute (AS 19.10.072), requires DOT&PF to consider the following factors in priority order: 1) neighborhood safety including the presence of children and pedestrians; 2) the presence of schools, houses, parks, and crosswalks; 3) the presence of driveways, parked vehicles, and turn locations; 4) the speed at which safe and prudent drivers travel; and 5) the effectiveness of local enforcement in the corridor. DOT&PF also looks at current driver speeds and is required to consult with the local government and community members.
How effective are posted speed limit reductions at reducing driver speeds?
Studies have shown that most drivers will choose the speed that gets them where theyʼre going as quickly as possible without endangering themselves, others, or their property. Posted speed limits are one factor, but not the only one, and not the most important one when it comes to the speed people drive. According to a report published by the Federal Highway Administration that looked at driver behavior and crash data from 100 sites in 22 states where speed limits had been lowered or raised, changing speed limits had little effect on how fast people drive. One of the conclusions of the report states, “Changing speed limits alone, without additional enforcement, educational programs, or other engineering measures, has only a minor effect on driver behavior.”
What's next?
DOT&PF is hosting a public hearing on Wednesday, June 10 from 5:30 - 8:00 p.m. at the Loussac Library in Anchorage to hear from community members about whether a lower speed limit would change their behavior, speeds, and use of the corridor. Each person will have three minutes to provide testimony that will be formally recorded.