Post on 29-Mar-2015
OR 217 Interchange Management Study
John Bosket, PE
A la carte planning for an unpredictable fiscal future
120,000 ADT
Beaverton Regional Center
DowntownPortland
Washington Square
Regional Center
Tigard Town
Center
12 interchanges in 7 miles
2 lanes
2nd Least reliable freeway
60% Non-recurrent congestion
70%
50%
Rear end collisions
Crashes in AM and PM peak periods
Photo by Michael Marcovici
Photo by Steve Rhodes
Is there a project we can afford that will make a difference?
mobility
reliability
safety cost
1. System management2. Ramp management3. Surface streets4. Interchange improvements
1. System management2. Ramp management3. Surface streets4. Interchange improvements
• A menu of compatible projects
• A menu of compatible projects
• A range of project costs
• A menu of compatible projects
• A range of project costs
• Flexible funding
• A menu of compatible projects
• A range of project costs
• Flexible funding
All projects advance the objective of improving reliability and safety
• 1.5 miles of shoulder widening
• Ramp meter upgrades
• 28 dynamic message signs on
mainline and arterials
• Full detection and
communications upgrades
• All new pavement
By 2013
So…?
So…?
We can make a difference with less money
So…?
Please keep sharing
John Bosket, PE