The Romanian administration carried out a large number of projects aimed at improving the infrastructure of the province, in order to introduce European gauge and reorient it towards Romania. The total length of the railway lines in Bessarabia increased only by 78 km (from 1140 in 1918 to 1218 in 1940). Local businessmen remained dissatisfied with the pace of the construction of new railways (the Chișinău-Căinari was the only one built anew) and the closure of a number of lines. Road infrastructure was also improved, as new highways and bridges over the Prut were built, while part of the existing roads were repaired and paved, increasing the length of highways from 150 to 754 km. However, most other roads remained impassable during rainy periods. Shipping on the Dniester was closed, and was never established on the Prut. In the 1930s, new airports were built, telephone lines were laid out, and radio transmitters were installed; nevertheless, the region still lagged behind Transylvania and the "Old Kingdom".