JEDDAH, 13 February - The Saudi Arabian Public Transport Company (SAPTCO) is discussing with concerned departments the possibility of raising the speed limit for its buses on the highways to 110 kph, up from the current 90 kph, Al-Madinah daily reported yesterday. The company's buses are fully equipped with qualified drivers to operate on the highways at a higher speed, according to Abdullah Al-Fayez, director general of SAPTCO.