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Traffic and Road Safety (TARS) Research Group
Project index
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Road Design
Delineation treatments to improve safety
2006 Transit funded project |
Crash reduction team identified two key trends from crash data:
- Drivers losing control/failing to stay on road
adverse conditions combined with inattention, speed & alcohol
- Crossing centre line/head-on crashes
resulting from loss of control & inappropriate overtaking
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Improved delineation treatment devised and applied to SH1 target areas in two phases:
- wider edge & double yellow centre lines
- vibrotactile thermoplastic rumble strips
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Results monitoring with calibrated video showed improved lane keeping with no increase in speed (behavioural adaptation). Preliminary crash data indicate significant safety gain
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SH1 Before SH1 After
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Received 2006 3M Traffic Safety Innovation Award, Institute of Professional Engineers of NZ (with Colin Brodie, Alan Burkett, Rob Dunne, & Robert Swears) |
Charlton, S.G. (2006). South Waikato and Taupo Target 2010 Remediation Treatments.
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