Construction is set to begin on Cambridge's Hanlin Road roundabout, to provide a safer entry and exit for motorists around the Avantidrome, and St Peters College.
Around 10,000 people travel through the current intersection daily, with high surges of traffic during events.
Since 2012 there have been 12 crashes within 300m of the intersection.
One of these was fatal, involving a vehicle turning right out of Hanlin Road.
There were also concerns over Cambridge's rapidly fast growth, along with high-speed traffic in the area meaning it's unsafe for cyclists and pedestrians trying to cross Cambridge Road.