This, the Commission said, was causing crashes as a result of absence of signs to warn motorists that work was in progress.
Mr. Abdul-Samad Mohammed, the Upper West Regional Manager of the NRSC, said this when he visited the offices of the Ghana Highway Authority (GHA) to lodge a complaint.
Mr. Mohammed said work zone safety specifications were meant to warn drivers at least 145 meters away on highways and contractors must ensure they abide by these safety specifications when executing road projects.
Mr. Lawrence Lamptey, the Regional Highway Director of the GHA, assured the Commission that he would send his men to the site and ensure that the contractor did the right thing.
He said some of the contractors did some of these things out of ignorance and therefore needed to be educated on work zone safety regulations.
The Commission also took advantage of the Wa market day to educate passengers on some safety tips at the Wa main lorry station.
Mrs. Hannatu Abdulai, a Regional Assistant Planning Officer (APO) of the Commission, said the passengers were educated on the importance of wearing seat belts, arrival at station on time and the need not to disturb the driver when he is driving.
She said they were also educated on the passenger code and the need for them to report drivers who misbehave by way of over speeding, wrongful over taking and any act that put their lives at risk.
Mrs. Abdulai said the passengers were also advised not to accept to sit on plastic chairs put on passenger walkways by drivers as the practice was detrimental to the safety of passengers.