
Presentation | 2013
Safety Effects of Median Modification Using Quick Kurb (QK)
- Authored by: Dr. Huaguo Hugo Zhou
- Co-authored by: Peter Hsu
- Event: 2010 National Conference on Access Management
Conclusions & Recommendations
- Effective Temporary Median Treatment
- Construction: Shorter Time and Less Cost
- Safety Effects
- Reduction on Left-Turn Related Crashes
- Total Crashes: Reduced for most of applications except full median closure from bi-directional median opening
- Benefit/Cost Ratio
- Bi-directional Channelization: 8-12
- One-directional Channelization: 3-5
Limitations & Next Step
- Short After Period in the Study
- Several Months to Three Years
- Small Sample Size
- Naïve Before-After Study:
- No SPF for Bi-directional Left-Turn Bays
Next Step:
- More Crash Data Collection
- SPF for Bi-directional Left-Turn Bays