PPBS

2024 Standard Plan Revision Summary

Standard Plan J-10.25-01 Transformer Cabinet (480V/240V - 240V/120V) : Standardized the design regardless of input and output voltages, removed the secondary main breaker to allow for full use of the 12-position breaker panel, added the option for inclusion of a lighting circuit (including photocell), and added a surge protection device to allow for direct wiring of Variable Message Signs (we will no longer receive a load center in a VMS cabinet, removing the need for a specialized VMS cabinet). Standard Plans J-20.01-01 Light and Signal Standard Index and Identification , J-21.10- 05 Type PS, Type 1, RM & FB Signal Standard Foundation Details, J-21.16-02 Flashing Beacon Type 1 Signal Standard Details, J-22.15-03 Ramp Meter (Type RM) Signal Standard Details, J-22.17-00 Ramp Meter Signal Installation Details (New Plan) - This block of plans has been revised to accomplish two things: 1. Slip-base foundations are being replaced with frangible bolt installations. This allows us to use one base plate, anchor bolt arrangement, and foundation design for both fixed and breakaway poles, with the only difference being the inclusion of breakaway bolt connections (ex: Transpo Pole-Safe), and for any site to be breakaway without significant modifications. Slip base pole drawings will be retained internally to support ordering maintenance spares, but all new construction will be square base plates. 2. Simplify the number of pole types. To reduce the number of pole types, omit duplicate information, and make the types more clear, the short vertical poles have been revised into four basic setups: PS (8 ft, square base), RM (8 ft, triangle base), I (10 ft, square base), and FB (15 ft, square base). To support this, J-22.17 was split out as a separate plan for Type I Ramp Meter Signal installations as it uses different pole types for different base configurations – J-22.15 was reduced to just the Type RM pole itself (no foundation or base details). Standard Plan J-20.05-00 Pedestrian Pushbutton (PPB) Location and Orientation (New Plan) - This is a new plan that shows proper field placement and orientation of accessible pedestrian pushbuttons. This had been in the works for a while, but the pending requirement that all PPBs be accessible (not necessarily APS) pushed this to the top of the list. Along with pending Design Manual revisions (1330 and 1510), this will now be an issue for flashing beacon systems (including RRFBs). Standard Plan J-20.15-04 Accessible Breakaway Pedestrian Pushbutton (PPB) Post - Breakaway PPB Post: Revised to show both a flat and curb based installation. The fixed base version has been deleted and will no longer be allowed for new construction. Standard Plan J-28.30-04 Steel Light Standard Foundation Types A & B - Per discussions with maintenance, we are moving the supplemental ground connection so that it only bonds the pole anchor bolts to the foundation reinforcing steel. This will perform the same function as the previous setup that connected the reinforcing steel to the ground lug in the pole while remaining intact in case of a knockdown (typically the current design is sheared and no longer usable).