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Traffic Control (900-999)

957ADVANCED TRAFFIC SIGNAL TECHNOLOGY

PA · 2026 Standard SpecificationsBook pages 956960View official source ↗

958.2(b) 958.2(c)

9.Traffic Signal Systems and Communications. Section 953.2.
(c)Temporary Traffic Control Signals on Pedestal -Mounted Portable Traffic Control Signal Systems .
1.System Configuration and Application. Furnish each pedestal -mounted portable traffic control

signal system as indicated, and as follows:

C onform to Publication 213, field conditions , and as indicated for short -term stationary operations using pedestal -mounted signals . Do not use pedestal -mounted portable signals for long- term, stationary operations. In addition to work areas, pedestal -mounted portable signals may also be authorized for use by the Department on special events and applications conforming to the requirements in Publication 213, and as indicated. Manufacturers must advise users of their systems of these Department requirements and procedures.

2.Pedestal Units.

2.a. Structural Adequacy. Provide a structurally adequate unit to support all pedestal -mounted equipment. Furnish units with adequate structural integrity to enable lifting and placing them as required. 2.b . Stability. Provide units with acceptable stability and a suitable means for ballasting.

2.c. Assembly Mechanisms. Equip each unit with tires and retractable handles to facilitate deployment, relocation, and removal. Mount signal heads on a retractable vertical upright equipped with a manual hand crank.

2.d . Labels. Mark the manufacturer, serial number, and emergency phone number permanently on each using a decal, metal plate, or other method approved by the Representative.

3.Signal Displays.

3.a. Number and Location. Furnish each pedestal -mounted portable traffic control signal system consisting of a minimum of two pedestal -mounted signal head units for each approach or as indicated.

3.b. Vertical Clearance. Mount the bottom of the housing of a signal at least 8 feet but not more

than 15 feet above the sidewalk. If there is no sidewalk, measure the mounting height above the pavement grade at the center of the roadway.

3.c. Size and Orientation. Mount each signal head vertically with indications 12 inches in diameter.
3.d. Signal Head Design. Furnish yellow signal head housings as specified in Section 955.2(b)1.

Provide signal heads with visors having a minimum depth of 9- 1/2 inches. Equip all signal heads with backplates as specified in Section 955.2(b)3.

3.e. Approved Material Types. Furnish all signal heads with LED modules. Provide all LED

modules and signal housings as specified in Section 955.2(c) .

3.f. Supplemental Signal Indicator Lamps. Provide lamps on the back side of each unit for a visual

status of the signal indication

Source: Pennsylvania Department of Transportation Specifications, 2026 Edition. Pages 956960 of 1,522.