A see-through effect is part of the ‘visual deceit’ family of crash causation. This occurs when a driver or rider misses the requirement to give-way or stop because the road geometry misleads them. It is common at crossroads.
The risk of see-through effect crashes can be lessened/eliminated at crossroads by:
- Installing a roundabout (Primary treatment)
- Closing a leg of the intersection (Supporting treatment)
- Offsetting the roads (Staggered T) (Supporting treatment)
- Adding splitter islands (Supporting treatment)
- Creating a 4 way give way/stop (Supporting treatment)
- Vehicle activated warning signs (Supporting treatment)
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