AAA recognizes the importance of selecting appropriate and enforceable speed limits. When maximum speed limits are correctly set and applied, they improve mobility, motorist safety, and respect for the law. States are urged to use engineering and traffic surveys when setting maximum speed limits and to adopt limits that will not have a significant adverse effect on highway safety. As a minimum, these surveys should include:
prevailing speeds as determined by traffic engineering measurements;
accident records; and
highway, traffic, vehicle, and roadside development characteristics.
Effects of Speed on Travel Time
AAA recognizes the importance of selecting appropriate and enforceable speed limits. When maximum speed limits are correctly set and applied, they improve mobility, motorist safety, and respect for the law. States are urged to use engineering and traffic surveys when setting maximum speed limits and to adopt limits that will not have a significant adverse effect on highway safety. As a minimum, these surveys should include: 
