<Li> <P> A Proton Wira yellow taxi in Pyongyang . </P> </Li> <P> A Proton Wira yellow taxi in Pyongyang . </P> <P> The Korean State Railway is the only rail operator in North Korea . It has a network of over 6000 km of standard gauge and 400 km of narrow gauge (762 mm) lines; as of 2007, over 5400 km of the standard gauge (well over 80%), along with 295.5 km of the narrow gauge lines are electrified . The narrow gauge segment runs in the Haeju peninsula . </P> <P> Because of lack of maintenance on the rail infrastructure and vehicles, the travel time by rail is increasing . It has been reported that the 190 km (120 mi) trip from Pyongyang to Kaesong can take up to 6 hours . </P>

Why are there no cars in north korea