US 30 Reconstruction Program
Eastern Project Area (Section CER)
STATION 3 – PA Route 340 Interchange
INPUT FOR THIS ACTIVITY HAS ENDED
Station 3 Video
Please review each of the alternative illustrations and the Decision matrix below to see the comparison of engineering and environmental criteria evaluated. After reviewing, be sure to click on the button at the top of the webpage to Provide Your Input.
Alternative A
- US 30 Mainline has three lanes in each direction.
- The interchange configuration in Alternative A is a traditional full diamond interchange.
- US 30 Westbound Ramps intersect PA Route 340 at a signalized intersection.
- US 30 Eastbound Ramps intersect PA Route 340 at a stop-controlled intersection.
- Existing traffic signal remains at the intersection of PA Route 340 and Humpton Road/Turkey Hill.
- West Bondsville Road remains open.
Alternative B
- US 30 Mainline has three lanes in each direction.
- The interchange configuration in Alternative B is a Diverging Diamond Interchange (DDI).
- A key feature of the DDI is that it creates two signalized crossover points which eliminates the need for left-turning vehicles traveling onto or off the interstate to cross paths with approaching through vehicles.
- Two traffic signals are provided along PA Route 340 at the crossover points for eastbound and westbound movements.
- The intersection of PA Route 340 and Humpton Road/Turkey Hill permits only right-in and right-out movements and the traffic signal is removed.
- West Bondsville Road is closed, and access to properties along this roadway is lost.
Click the image below to view an educational video prepared by PennDOT for the Diverging Diamond Interchange at Interstate 70 and Route 19
Click the image below to view educational videos prepared the US Department of Transportation and the Federal Highway Administration for Diverging Diamond Interchanges
Alternative C
- US 30 Mainline has three lanes in each direction.
- The interchange configuration in Alternative C is a traditional full diamond interchange.
- US 30 Westbound Ramps intersect PA Route 340 at a roundabout.
- US 30 Eastbound Ramps intersect PA Route 340 at a stop-controlled intersection.
- Existing traffic signal remains at the intersection of PA Route 340 and Humpton Road/Turkey Hill.
- West Bondsville Road remains open.
Click on the image below to view the PennDOT Roundabout Website with Educational Information, Statistics and Videos
Alternative D
- US 30 Mainline has three lanes in each direction.
- The interchange configuration in Alternative D is a Single Point Urban Interchange (SPUI).
- A key feature of the SPUI is that it provides a single central signalized intersection through which all left-turns utilizing the interchange must travel.
- All right-turns onto and off of the ramps are yield-controlled.
- Existing traffic signal remains at the intersection of PA Route 340 and Humpton Road/Turkey Hill.
- West Bondsville Road is closed, and access to properties along this roadway is lost.
Click on the image below for an educational video on the Single Point Urban Interchange prepared by the Virginia Department of Transportation
Alternatives Decision Matrix
The following tables summarize the evaluated engineering and environmental criteria to compare the alternatives.
