Division of Traffic Engineering  

The Division of Traffic Engineering manages, directs and coordinates traffic designs, studies, and investigations for State roadways.  The Division of Traffic Engineering is organized according to the units described in the links below:

Requests for additional information should be addressed to:

Mark F. Carlino, P.E.
Division Chief of Traffic Engineering
Phone: (860) 594-2711
Email: DOT.TrafficEngineering@ct.gov 

 Administrative Assistant: Shelley Seymour

A list of common questions received by our office may be found here: Frequently Asked Questions.


Traffic Engineering Sections

Traffic Engineering - Operations

Traffic Engineering - Project Design

Traffic Engineering - Signal Projects and Signal Management

Traffic Engineering - Safety Engineering


Traffic Documents

Traffic Control Signal Design Manual

Traffic Engineering Standard Drawings and Design Guidelines 

Special Provisions

Functional_Specifications_for_Traffic_Control_Equip.pdf   (9mb) Updated 2016-2019

Sign Catalog

Traffic Detour Evaluation 


Other Traffic Related Links

Highway Signing Policy and Programs

Office of the State Traffic Administration (OSTA) - FAQs, Organization Rules, Practices and Regulations, Speed Limit Questions, Thru Truck Prohibitions, Limited Access Highway Information. 

CTDOT Permits - Links to OSTA Major Traffic Generator Certificates, Speed Limit Certificates, Traffic Signal Permits, Encroachment Permits, and other permits. 

Bureau of Policy and Planning Town maps, Traffic Counts, Regional Planning Agencies, etc.

CTDOT - SELECTseries Digital Design Environment

Manual on Uniform Traffic Control Devices (MUTCD) 

UCONN Crash Repository