NCHRP Report 504: Design Speed, Operating Speed, and Posted Speed Practices
| Type of Resource: |
Document
|
| Authors: |
Fitzpatrick, K.
;
Carlson, P.
;
Brewer, M.A.
;
Wooldridge, M.D.
;
Miaou, S.P.
|
| Publisher: |
Transportation Research Board
|
| Report Number (if applicable): |
NCHRP Report 504
|
| Year: |
2003
|
Resource Links: Link to Document Design speed operating speed and posted speed practices.pdf
External Link to Document NCHRP Report 504: Design Speed, Operating Speed, and Posted Speed Practices
Resource Abstract:
This report examines the relationship between design speed and operating speed through a survey of the practice and a thorough analysis of geometric, traffic, and speed conditions. The basis for recent changes in speed definitions in AASHTO’s A Policy on Geometric Design of Highways and Streets (Green Book) and the Manual on Uniform Traffic Control Devices (MUTCD) are presented. Researchers should find the data (available on the accompanying CD-ROM) to be very useful in further exploring relationships between roadway factors and operating speed. The report will be of interest to designers and others interested in understanding the factors that affect drivers’ speeds.
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