Tim Woodward, Network Planner at National Express West Midlands said that buses travelling through the city centre of Birmingham during the tunnel closures will be given "priority" to bypass the queues.
"Bus priority measures should reduce any amount of delay that the buses experience", he said, "they will be able to bypass the queues and provide a quick reliable service right into the heart of the city centre."
Cameras from ITV News Central went inside the St Chad's and Queensway tunnels to see the work going on there.
The A38 St Chad's and Queensway tunnels through Birmingham are now closed - and will stay closed for six weeks until September 2nd.
The ITV News Central guide to alternative transport during the Birmingham A38 tunnel closures.