Design Manual (M22-01), Chapter 1040 - Illumination (PDF 1.36MB)
Design Manual (M22-01), Chapter 1050 - Intelligent Transportation Systems (ITS) (PDF 1.2MB)
Design Manual (M22-01), Chapter 1330 - Traffic Control Signals (PDF 1.5MB)
Manual on Uniform Traffic Control Devices, Part 4 - Highway Traffic Signals
Roadside Electrical and Electronic Systems (REES) Standards
The WSDOT Roadside Electrical and Electronic Systems (REES) Standards are a series of standards for roadside electrical systems such as roadside power distribution, illumination, traffic signals, and ITS equipment specific to WSDOT owned, operated and maintained systems. As each standard is completed it will be provided here.
WSDOT REES Standard E1 - Roadside Power Distribution (PDF 560KB); provides guidance on power distribution from electrical service cabinets to lighting, traffic signal, ITS, and related devices, and includes information for developing electrical service agreement documentation.
WSDOT REES Standard P2 - Advance Warning Systems (PDF 2.87 MB); provides guidance on prepare to stop when flashing (PTSWF) systems, intersection conflict warning systems (ICWS), and rail crossing warning systems (RCWS).
REES Technical Notes
REES Technical Notes are provided as technical support and guidance for meeting Design Manual or REES standards. These technical notes may be incorporated into other standards as part of future manual updates.
WSDOT REES Technical Note TL1 - Vertical Illuminance Grids for Crosswalks (PDF 431KB); This technical note provides guidance on placing vertical illumination calculation grids for crosswalk lighting analysis as required by WSDOT Design Manual Section 1040.10.
See all manuals and standards
Standard Plans (M21-01), Section J
Plan Sheet Library, Section IS - Illumination, Signals, and ITS
Traffic Detail Library (temporarily unavailable online - contact for information)
Bridge Design Manual (M23-50), Chapter 10 - Signs, Barriers, Approach Slabs, and Utilities (PDF 8.6MB)
(see Traffic Barriers and Luminaires sections, 10.2-A1 through 10.2-A7, under Standard Plans & Drawings)
Standard Specifications
Division 8 - Miscellaneous Construction (PDF 1.1MB)
Section 8-20 - Illumination, Traffic Signal Systems, Intelligent Transportation Systems, and Electrical
Division 9 - Materials (PDF 1.9MB)
Section 9-29 - Illumination, Signal, Electrical
General Special Provisions (GSPs)
Division 8 - Miscellaneous Construction (PDF 399KB)
Section 8-20 - Illumination, Traffic Signal Systems, Intelligent Transportation Systems and Electrical (Includes Section 9-29 GSPs)
Additional Specifications
Accessible Pedestrian Signals
Accessible Pedestrian Signals (APS) are traffic signal system devices which combine a pedestrian detector - commonly a pushbutton - with pedestrian signal indications in non-visual formats. These non-visual indications are both audible and tactile. Because there is a tactile indication, APS pushbuttons are now required in locations where there may have never been a pushbutton before - usually because the existing system does not require pedestrian detection (automatic walk signal).
All APS units for WSDOT signal systems must include speech messages, and speech message tables must be included in Contract Plans. In order to provide a consistent message format throughout the state, speech message tables and messages must follow the APS Sample Message Table (PDF 456KB), which is to be used in concurrence with General Special Provision (GSP) 8-20.2(9-29.19).OPT1.GR8 (PDF 113KB).
LED Luminaire ANSI/NEMA Labeling
LED luminaires used in WSDOT systems are classified by their high pressure sodium (HPS) wattage equivalent (see <new link pending>). Consistent with this classification system, luminaire labels use a modified version of the standard ANSI/NEMA C136.15 label.
WSDOT ANSI/NEMA Labels for LED Luminaires (PDF 23KB)
Other Standards
USDOT ITS Standards
National Transportation Communications for ITS Protocol (NTCIP) Standards
CalTrans Transportation Electrical Equipment Specifications (TEES)
