Monday, May 11, 2026

Publication 149, May 2026 Edition

The Bureau of Operations is releasing a new edition of Publication 149, Traffic Signal Design Handbook, May 2026 Edition. Publication 149 was restructured to present a holistic approach to traffic signal design which is consistent with the latest PennDOT and federal practices.

The new edition should be adopted on projects as soon as practical without affecting any letting schedules but must be used on all projects let after October 1, 2026. This publication was circulated through the Clearance Transmittal (CT) review process and approved by the Federal Highway Administration. The revisions to the publication also include compliance with the Federal Manual on Uniform Traffic Control Devices (MUTCD), 11th edition.

The publication is available on PennDOT's website under Forms and Publications, and is available from a direct link here.

Comments or questions concerning this publication may be directed to Stephen Gault, P.E., PTOE, Chief, TSMO Arterials and Planning Section, Bureau of Operations at 717-787-6988 or sgault@pa.gov.