ACEA Annual Conference

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Presentation transcript:

ACEA Annual Conference Perdido Beach Resort Orange Beach, AL May 9, 2018 Evaluating PERs/PPSOWs Adam Sanford, P.E. Assistant Bureau Chief, Pre-Construction Local Transportation Bureau

Topics Covered How PERs are reviewed How PPSOW Forms are reviewed

PER – Traffic counts The present traffic volume for this project is 3204-3987 ADT. The projected traffic volume for 2028 is 3906-4860 ADT. The project traffic volume in 2038 for ESALS is 4761-5925 ADT. The truck volumes for this project are 15.1-19.2%. 2000 ADT is the magic number! 10% or higher?

PER – HORIZONTAL ALIGNMENT HORIZONTAL ALIGNMENT: There are a total of seven (7) horizontal curves along the entire project. All seven (7) horizontal curves will meet the Horizontal Curvature and Superelevation design criteria for the 45 MPH design speed. Must be within 15 MPH

PER – Vertical ALIGNMENT VERTICAL ALIGNMENT: There are a total of six (6) vertical curves (2 sag and 4 crest) along the entire project. All six (6) of the vertical curves will meet Vertical Curvature and Stopping Sight Distance design criteria for the 45 MPH design speed. Must be within 20 MPH

PER – Bridges Bridge centerline lengths often don’t match BRM Entry # 49(Structure Length) Bridge Width often doesn’t match BRM #51 (Roadway) (curb to curb)

PER – Bridge Culverts Station limits don’t usually reflect correct length (doesn’t include outer walls) Width doesn’t reflect barrel length

PER – Accident data Accidents are either segmental or intersection related If there are any fatalities or Class A injuries, we will need to know where it occurred (node or between nodes) and what caused it.

PPSOW – pavement buildup 1) Item No. 401B-108, Bituminous Treatment “G” (with Polymer Additive) (approximately 18 lbs/sy) 2) Item No. 424B-642, Superpave Bituminous Concrete Upper Binder Layer, Leveling, 1/2” Maximum Aggregate Size Mix, ESAL Range A/B, approximately 165 tons 3) Item No. 424A-340, Superpave Bituminous Concrete Wearing Surface Layer, 1/2" Maximum Aggregate Size Mix, ESAL Range A/B (195 lbs/sy)

PPSOW – Non contract items Don’t forget to list items Show force account items under additional comments

Closing remarks Our jobs are a blessing!!! Do your job with: -High ethical standard -Honor -Respect

Questions?