in reducing the number of accidents. Dashcams are widespread, inasmuch as Russian courts prefer video evidence to eyewitness testimony, but also as a guard against police corruption and insurance fraud. Fleet After World War II, trucks and buses were manufactured for the socialist countries of Eastern Europe: Ikarus urban, intercity and tourist buses, Skoda buses and trucks, Industriewerke Ludwigsfelde and Robur trucks, Tatra, LIAZ, Praga V3S, Csepel, Avia and ZSD Nysa passenger vans and Zuk cargo vans). During the late 1950s OAF trucks were imported from the West, and Berliet T60 dump trucks were imported in 1969 to open the mine and ore-processing plant of Ai in the Orenburg Oblast. Tractors from Volvo and Mercedes-Benz NG were imported during the 1970s for the road-transport organization Sovtransavto. Unic-Fiat tractors were imported in the mid-1970s for the port of Leningrad, and Unit Rig and International Harvester Paystar dump trucks and cement mixers were used for the construction of irrigation canals from 1979 to 1983. Fawn ballast tractors were imported from 1970 to the 1980s, and Komatsu dump trucks began to be imported in 1979. Magirus bonneted flatbed trucks and dump trucks were used in 1975 for the construction of the Baikal–Amur Mainline (BAM). By the 1980 Summer Olympics in Moscow, priority was given to smaller cars (such as the Mercedes-Benz S-Class W116) as police cars, taxis and vans. However, most vehicles were Soviet-made cars: Moskvitch, GAZ-M20 Pobeda, GAZ, ZiL, VAZ, Izh and ZAZ automobiles, UAZ and LuAZ jeeps, RAF and ErAZ vans, GAZ, Kamaz, ZiL, MAZ, KrAZ, UralAZ, BelAZ and KAZ (Colkhides) trucks, KAvZ, PAZ, LiAZ and LAZ buses and ZiU trolleybuses. In 1988, the free sale of trucks and buses was permitted. Since the 1990s, many new and used cars have been imported. During the 2000s, foreign companies began to build factories in Russia or enter into agreements with existing assembly plants. Currently, European and Asian parts of Russia have different fleets. European Russia primarily contains Russian, European, Japanese, American, and Chinese cars and trucks; the Asian side contains used vehicles from the Japanese domestic market, concentrated in Vladivostok. The largest share of Russian auto brands is in the North Caucasus regions of Dagestan and Chechnya. GAZelle marshrutkas and Ford Transit, Peugeot Boxer, Fiat Ducato, Renault Master, Iveco Daily, Mercedes-Benz Sprinter and Volkswagen Crafter vans and Russian (PAZ), Ukrainian (Bogdan, South Korean (Hyundai County) and Chinese (BAW) minibuses, painted in one