The owners held a meeting with Chittagong Superintendent of Police on Thursday on safety issues on the nation's busiest highway.
They told Communications Minister Obaidul Quader the ongoing work to convert the highway into four lanes has been causing terrible traffic congestions since the beginning of monsoon.
The potholes and cracks on the highway were causing frequent accidents and congestion, they said.
Transport workers said it took them 17-20 hours to travel the 465 km highway.
Following the meeting Quader instructed the Roads and Highways Division to open a control room to coordinate repairs and traffic management on the highway. He also instructed a road repairs team to be on the highway round the clock and talked about borrowing cranes from the Chittagong Sea Port to remove broke- down vehicles.