Public Infrastructure Department, Harris County, Texas

Traffic & Transportation Group

The Harris County Public Infrastructure Department, Architecture and Engineering Division, Traffic & Transportation Group's page provides information, guidelines, specifications and various drawings for your use. The drawing files are in the .dwg format and the text based files are in the Adobe .pdf format. If you do not already have the Adobe reader, it is available free for download at Adobe's web site.

To report traffic signal outages or trouble with signal timing, please call 713 881-3210.

Traffic Pay Estimates
The Traffic Section's Pay Estimates are now available to view on line in the Adobe pdf format.

Traffic Counts
Harris County's traffic counts are available here
The Texas Department of Transportation's traffic counts are available by contacting their Customer Service Department at 713-802-5309.

Traffic Planning & Design Guidelines
The following three items are all links to .pdf files, please left click to view them or right click and choose "save as" to download the file.

Traffic Impact Analysis Guidelines
Traffic Signal Design Guidelines
Traffic Control Plan Guidelines

Specifications and Detail Sheets
The following four items are all self executing zip files, please left click the heading you are interested in choose save, and after downloading double click on the file.

Traffic Signal Standards
Traffic Signal Special Specifications
Pavement Marking and Ramp Details
Traffic Control Plan Details

Miscellaneous Drawings
The following three items are .dwg files, please right click the heading you are interested in choose "save target as".

Harris County Cover Sheet
Standard Title Block

Traffic Related Links
Texas Manual on Uniform Traffic Control Devices (Texas MUTCD)
Local Traffic Conditions
Procedures for Establishing Speed Zones


Revised: 04/01/15


Report traffic signal outages or trouble with signal timing by calling 713 881-3210