Transportation Engineering and Traffic Operations

Updated May, 2011

What We Do:

Transportation Engineering

• Review land development plans for traffic-related issues;
• Review Traffic Impact Studies for new land development;
• Investigate traffic concerns in neighborhoods and on the major roadway system (speeding, cut-through traffic, requests for traffic signals, etc.);
• Prepare traffic signal timing plans to ensure that traffic signals along long corridors operate in a synchronized fashion during peak travel periods;
• Monitor the safety performance of and make recommendations for improvement to roadways and intersections in unincorporated Douglas County;
• Coordinate with other agencies (federal, state, regional, local) on transportation issues;
• Identify and address future needs for the Douglas County transportation system.

Traffic Operations

• Install and maintain roadway striping and markings in unincorporated Douglas County;
• Install and maintain traffic signs in unincorporated Douglas County;
• Oversee the installation of and maintain traffic signals in unincorporated Douglas County;
• Install and maintain flashing school zone signs ("school flashers");
• Collect traffic data in support of efforts by Transportation Engineering;
• Provide support to other departments within the County (e.g. Douglas County Sheriff’s Office, Emergency Services and other Public Works Divisions, etc).

Additional Resources

Traffic Counts  [132KB - Last Updated May, 2011 ]

Historical traffic count data available from previous traffic studies. All streets have not been counted. For more recent data or if you have any questions or concerns about data contained in the list, please contact Traffic Engineering at 303.660.7490 or via e-mail at traffic@douglas.co.us.

Signalized Intersection List [437KB - Last Updated October, 2009]

When reporting a malfunctioning traffic signal or for questions about the "timing" of traffic signals in any part of Douglas County, please view this document first to determine the appropriate agency to contact.

Douglas County 2030 Transportation Plan [30.8MB]

An element of the Douglas County 2030 Comprehensive Master Plan. Prepared by LSA Associates, Inc..

Douglas County 2020 Transportation Plan  [7.66MB]

An element of the Douglas County 2020 Comprehensive Master Plan. Prepared by Felsburg, Holt, & Ullevig - Updated April 2004.

Guidelines for Traffic Impact Studies  [2.31MB]

This is Chapter 17 - Appendix B of the Douglas County Roadway Design and Construction Standards Manual. Updated July 2003.

Traffic Signal Specifications  [4.07MB]

This is Chapter 17 - Appendix F of the Douglas County Roadway Design and Construction Standards Manual. Updated July 2003.

Signing and Striping Supplement  [377KB]

This is Chapter 17 - Appendix G of the Douglas County Roadway Design and Construction Standards Manual. Updated July 2003.

Signing and Striping Supplement Plan Sheets  [2.48MB]

*Note - The Signing and Striping Supplement Plan Sheets are provided in Adobe Acrobat format only. This ensures consistent notes and details for each project. Please ensure that both sheets are attached to Signing and Striping Plan sets.