Click here to write a Letter to the Editor. WASHINGTON — Rep. James Oberstar (D-Minn.), a key transportation legislator and a longtime opponent of increasing truck sizes and weights, told Transport Topics he would now support a pilot study of larger vehicles on U.S. highways.“I do think that we should have a pilot project where we really test the effect of heavier vehicles, longer vehicles, on the road surface,” said Oberstar, the new chairman of the House Transportation and Infrastructure Committee.In a Feb. 16 interview with TT reporters and editors, the 17-term legislator also said larger trucks would have to pay higher fees and be segregated from other traffic.For the full story, see the Feb. 26 print edition of Transport Topics. Subscribe today.