The South Luzon Tollway Corp. (SLTC) has received the green light from the Toll Regulatory Board (TRB) to collect higher fees for motorists using the South Luzon Expressway (SLEX) starting June 30.From 12:01 a.m. on June 30, the new toll rates from Alabang to Calamba will be P77 for Class One vehicles, P155 for Class Two, and P232 for Class Three. Currently the rates for all three classes are at P22, P43 and P65, respectively.TRB spokesperson Julius Corpuz said the agency approved the increase after the SLTC complied with their obligations and the TRB's conditions, the Manila Bulletin reported."The TRB recognizes and respects the rights of the Investor/Operator as well as the provisions and procedures stated in the agreement entered into by the government with the investor or operator," Corpuz said. "The SLTC and the Manila Toll Expressway System (SLTC's designated operator for the SLEX), however, are obligated to continuously and properly maintain the SLEX and to always provide the best service to the motorist users."SLTC spokesperson Alma Tuazon also said that the new toll rates "are just appropriate for the newly reconstructed and widened SLEX.""The old toll rates were the lowest in the country and were charged for the old and worn out SLEX for years," Tuazon added.SLTC said improvements done on the Alabang-to-Calamba stretch of the SLEX, which amounted to P11 billion, has cut the travel time by half, with a trip now taking around 30 minutes instead of the usual one hour.