To take tractor-trailer trucks off the roads, Ukrzaliznytsia plans to offer shippers the option of sending semi-trailers to the EU on flatbed wagons, Volodymyr Zhmak, the railroad’s CEO, tells Mintrans news site. A semi-trailer is a trailer without a front axle and without the tractor. By hauling semi-trailers across borders, Zhmak said the railroad would cut the wear and tear on roads, reduce lines at border posts, and ease the problem of Poland restricting permits for Ukrainian truckers.