Ever wondered why roundabouts are often designed with adverse crossfall?
It’s all about:
- Drainage: To ensure water flows out efficiently.
- Visibility: Making the roundabout more pronounced and noticeable.
- Ease of Construction: To tie into the existing road crossfall.
But there’s a trade-off – increased risk of truck rollovers and motorcycle loss of control.
So, how can we reduce rollover risks at roundabouts?
- Conduct heavy vehicle stability analysis during the design phase.
- Ensure strict adherence to construction tolerances.
- Lower approach speeds using reverse curves or other speed-calming measures.
- Install speed advisory signs to guide drivers effectively.
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