1. Roadway Cross Section Design Flexibility
AASHTO SCOD
Region 1 Meeting

2. Design engineers say we have to use this criteria
Typical Section
Traditional Freeway Cross Section
AASHTO Based Pennsylvania DOT Design Manual Part 2
Design engineers say we have to use this criteria

3. Rural Principle Arterial 60 MPH Design Speed

4. Initial Cross Section
50 MPH Design Speed
Urban Freeway

5. Modified Cross Section
50 MPH Design Speed
Urban Freeway

6. Key Elements of the Parkway Concept
S.R 202, Section 700
Key Elements of the Parkway Concept
From Welsh Rd. to Horsham Rd. – four 11’ travel lanes (two each direction) and a 5’ paved shoulder on each side. Second travel lane between Horsham Rd. and SR 309 can be eliminated if ongoing traffic forecasts do not indicate the need.

7. Key Elements of the Parkway Concept
S.R 202, Section 700
Key Elements of the Parkway Concept
From Horsham Rd. to SR 611, the new roadway will have two 11’ travel lanes (one per direction), 5’ paved shoulders on each side, and no curbs.

8. Safety Corridor Project

9. Freeway Cross Section Flexibility
Discussion of Other States’ Experiences in Design Flexibility
Opportunities for Additional AASHTO Green Book Flexibility