Greensward Rd. & US 62 (Johnstown Rd.)
New Albany, OH
OVERVIEW
MTJ was retained to provide a peer review for this rural, transitional speed roundabout application located on US Hwy. 62.
This peer review followed MTJ’s 3-Step Review/Design Optimization Process, which includes:
- Traffic Planning and Operational Analysis
- Alternative Concept Development
- Preliminary Design
SUMMARY
In Step 1, MTJ conducted a traffic planning level review of the system of intersections along Johnstown Road (US 62). Of particular concern was the effect a roundabout may have on ingress and egress of the two intersections located north and south of the proposed roundabout at Greensward and US 62.
In Step 2, MTJ developed a “right-sized” roundabout that accounts for design vehicles and avoids unnecessary realignments that do not add safety or operational value.
Step 3 resulted in a context-appropriate design that minimized adverse impacts (ROW, environmental) and maximized community benefits while adhering to all roadway and roundabout-specific safety design principles.
HIGHLIGHTS
- Improved speed control
- Compact roundabout design
- Large freight/truck accommodation
- MTJ redesign reduced ROW impacts
- Improved driver expectancy
