PA TWO WAY TRAFFIC SIGN SERIES

Retroreflective sheeting or other approved retroreflective materials must be used on all signs that do not have sign illumination, unless the sign standard as included in the Pennsylvania Handbook of Approved Signs (Department Publication 236M) indicates that the sign does not need to be retroreflective.

Signs smaller than the minimum size or larger than the largest size specified on the sign standards in the Pennsylvania Handbook of Approved Signs (Department Publication 236M) are not permitted without written approval from the Department. Commercial or municipal sign manufacturers who wish to obtain Department approval to manufacture signs shall request an application from the Bureau of Highway Safety and Traffic Engineering. Only signs manufactured by the Department or a Department-approved sign manufacturer shall be used on any highway. Variations in the proportion of symbols, stroke width and height of letters, width of borders or layout of word or symbol messages will be sufficient cause for the Secretary to order the removal or replacement of a sign, but will not be a defense in prosecution for violation of any mandatory traffic control provided by the sign. Official signs must replace existing signs of nonstandard design or application as rapidly as is economically feasible. When approved by the Secretary, through the Chief, Traffic Engineering and Operations Division, these signs shall also be regarded as official signs. When sign messages are required other than those provided for in the Pennsylvania Handbook of Approved Signs, the Bureau of Highway Safety and Traffic Engineering may authorize new sign standards. Official traffic signs are identified in the Pennsylvania Handbook of Approved Signs (Department Publication 236M) which includes sign standards that show the shape, color, dimensions, legends, application and placement of official signs. Recreational and cultural interest area signs. No Turn on Red Sign (R10-11 sign series). Stopping, standing and parking restrictions. SIGNSĪdditional warrants for Stop Signs (R1-1) and Yield Signs (R1-2).

(7) Work Zone Traffic Control Guidelines (Department Publication 213) which provides additional guidance and suggested temporary traffic-control plans for maintaining traffic through highway construction, maintenance and utility work zones to supplement various situations not included in the MUTCD.

PA TWO WAY TRAFFIC SIGN SERIES

(6) Traffic Signal Standard Drawings, TC-8800 Series (Department Publication 148M) which contains detailed guidance for the construction of traffic signals, controller assemblies, traffic signal supports, electrical distribution, signal heads and detectors. (5) Traffic Signal Design Handbook (Department Publication 149M) which contains information for use in the design and operation of a traffic signal installation. The publication also includes detailed drawings of pavement marking lines and symbols, and the placement of delineation devices at on-ramps, off-ramps and lane drops. (4) Signing and Marking Standard (Department Publication 111M) which contains the traffic standards that provide detailed guidance for sign legends, expressway and freeway signs, sign spacing and location criteria and sign posts. (3) Pennsylvania Handbook of Approved Signs (Department Publication 236M) which contains the design and application details of official traffic signs.

Pa two way traffic sign