1. National Research Council, Transportation Research Board. Committee for Guidance on Setting, Enforcing Speed Limits X. “Managing Speed: Review of Current Practice for Setting and Enforcing Speed Limits,” (1998).
2. Effects of the 88.5km/H (55mph) Speed Limit and Its Enforcement on Traffic Speeds and Accidents;Dart,1977
3. A Cost-Benefit Analysis of the 55 MPH Speed Limit
4. Analysis of the Relation of Accidents and the 88-Km/H (55-Mph) Speed Limit on Arizona Highways;Burritt;Transportation research record,1976
5. National Highway Traffic Safety Administration., “The Effects of the 65 Mph Speed Limit through 1990: A Report to Congress,” US Department of Transportation, Washington, DC, (1992)