43,000 people commute from Cork County into the city every morning.
A Vodafone study used various data to map commuter trends, and captured employees driving in cars into Cork, along the main roads into and out of the city.
According to the Irish Examiner many of the arteries are considered to be operating beyond capacity.
The South Ring Road has 87,000 vehicles every day, while the Dunkettle Interchange carries up to a whopping 100,000 vehicles daily.
Cork City Council's Chief Executive, Ann Doherty says public transport is the only way to reduce gridlock.