Download presentation
Presentation is loading. Please wait.
Published byJack Johns Modified over 9 years ago
1
SAFETY FUNDING APPLICATION STA-62-24.90 STA-62 & Harrisburg/Middlebranch and Harrisburg Rd & 30 th St. Safety Improvements
2
Background May 2012 Safety Funding Cycle $400K approved for PE (Tier 2) Not programmed Current 2013 application reflects the total PE/DD estimate T.O. contract with DLZ used to complete 2b-2c AER Timesaving and cost-effective Programmatic/Scope/Cost-Proposal… Consultant familiarity Ongoing STA-US 62 Corridor study
3
Background STA-62 Corridor Study ODOT/SCATS Joint initiative (PID 80917) 6.2 miles between SR 43 and SR 44 interchanges Stakeholders meeting – County requested to include examination of 30 th and Harrisburg STA-62 Safety Study and AER Task Order (PID 89147) to break out and expedite evaluation of long term countermeasures Focused on three intersection area US-62 & Harrisburg Rd/Middlebranch Ave US-62 & Ramps W-E Harrisburg Rd & 30 th Street
4
Aerial View of Existing Conditions N Harrisburg & 30 th St. is currently a 4-way stop
5
Location Safety Ranking Chronic high crash location(s) Safety Study began as 2009 HSP and SCATS High Crash location(s) Current Ranking: US62 at Harrisburg/Middlebranch 2011 ODOT Safety Analyst Urban Intersection #104 2011 SCATS #22 High Hazard Rating Rank 30 th Street at Harrisburg/Ramps W-E 2011 SCATS #5 High Hazard Rating
6
Crash Data Summary, 2009-2011
7
Collision Diagram, 2009-2011 US-62 at Harrisburg/ Middlebranch/Ramps/ 30 th Street (Triangle)
8
Collision Diagram, 2009-2011 US-62 at Harrisburg/ Middlebranch
9
Collision Diagram, 2009-2011 US-62 at Ramp W (WB On Ramp)
10
Collision Diagram, 2009-2011 Harrisburg Rd at 30 th St/Ramp W
11
Problem Statement and Recommendations Each, as stand alone intersections, has a high crash frequency and apparent pattern US-62 & Harrisburg Rd/Middlebranch Ave is a congested intersection. Angle of Harrisburg with US-62 is 35 Degrees Access/Drive Issues Proximity and alignment compound the complexity of problems Requires analyzing together to determine appropriate long term countermeasure Recommendations: Create two signalized tee intersections on US-62. Construct a roundabout at Harrisburg Rd & 30 th St.
12
Proposed Long-Term Countermeasure Alt. 2b N
13
Capacity Analysis Significant Reduction in Overall Delay for Peak Hours
14
No Build & Alt. 2b Conditions SimTraffic Model – PM Peak Hour Existing – 4-way stop at Harrisburg & 30 th Alt. 2b
15
Rate of Return Analysis RW and Construction estimates adjusted with higher contingency to credibly meet the project expense Acquisition costs Urban setting with dense commercial development. Rate of Return is conservatively still about 8% on total cost
16
Project Funding Plan Local funding commitment for 30 th Street at Harrisburg ODOT administer project
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.