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, where traffic signals are in close proximity to one another, and in areas where there are multiple requirements on the driver/rider in close succession. 

The risk of see-through effect crashes can be lessened/eliminated at crossroads by:  
 – Installing a roundabout (Primary) 
 – Closing a leg of the intersection (Supporting) 
 – Offsetting the roads (Staggered T) (Supporting) 
 – Adding splitter islands (Supporting) 
 – Creating a 4 way give way/stop (Supporting) 
 – Vehicle activated warning signs (Supporting)