TRANSPORT officials say the number of motorbike licenses issued every month has declined this year, prompting appeals for unlicensed drivers to get themselves registered in a bid to avoid road accidents. Preap Chanvibol, director of the Land Transport Department at the Ministry of Public Works and Transport, said around 3,000 motorbike licences were issued in June and July, down from as many as 10,000 in each month from January to May.