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USGS cone penetration testing ( CPT ) truck . " No one owns a cattle car , but lots of people own [ pickup ] trucks , so if someone in the college decides that they're going to let their truck be used to pull the flatbed , all you have to do is rent the flatbed , " Attaway said . The smaller ( 1-2 ton ) trucks were aimed at the agricultural market , while the heavier models were intended for use in the logging , fire fighting , and snowplowing industries . " Malians have already demonstrated their affection : when a massive drought dried up the elephants ' last remaining water source in 1983 , the government ( a constitutional democracy ) trucked in water for the beasts.The goal of ongoing tracking projects , Martin says , is to identify " choke points " — corridors the elephants must traverse to complete their migration . Recently , Recktenwald and graduate student Bhaskar Bhatnagar assisted Freightliner in the design of a full-scale wind tunnel for testing their class 8 ( largest ) trucks .