Potential voters can use Dallas Area Rapid Transit services for free on election day. The transit agency announced April 29 that riders who present a valid voter registration card will receive a free ticket from 6 a.m.-8 p.m. on May 4. The offer is for DART buses, light rail trains and the Trinity Railway Express. Collin County residents can vote at any polling location within the county. A full list of polling locations is available on the county’s elections website.