On both lanes of Roxas Boulevard, signs are now prominently displayed, setting speed limits of 50 kilometers per hour for buses and trucks and 60 kph for light vehicles. The new road signs began appearing along the northbound lane, from the MIA Road junction, only late last month, after motorists complained about being apprehended for “speeding” along a boulevard where not a single sign specifying the speed limit was posted. What happens now to the P1,000 fine imposed by the traffic enforcers of the Metropolitan Manila Development Authority (MMDA) before the road signs went up? Ignorance of th…