Description
| Abstract: | Within Texas, the Texas Department of Transportation Procedures for Establishing Speed Zones (TxSZ) and the Texas Manual on Uniform Traffic Control Devices (TxMUTCD) are used for setting speed limits other than statutory speed limits. The TxSZ details how to conduct an engineering study that is needed when investigating the appropriate speed limit for a speed zone. The objective of this guide is to provide methods and examples on how to use alternative sources of data when evaluating speed limits. It does not replace the material in the TxSZ or the TxMUTCD. Rather, it provides suggestions on how INRIX speed data can be used in an engineering study required in a speed zone study and demonstrates other supplemental methods and guidance when conducting a speed zone study. It provides step-by-step instructions on how to obtain the INRIX speed data, convert it into representative free-flow speed measures, and use it in both the TxSZ method and the Speed Limit Setting Tool. |
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| Physical Description: | 1 online resource (xxi, 71 pages) : color illustrations, color maps |
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| Bibliography: | Includes bibliographical references (pages 70-71). |
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| Access: | Open access version available |
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