Commuters who live in western Prince William and Fauquier counties can leave the driving to someone else come Dec. 17 when a new bus begins round-trip service from Haymarket to Arlington. The “OmniRide Haymarket Express” will make four trips in the morning and four return trips in the afternoon and early evening. It will run along I-66 between Haymarket and the Rosslyn Metro station. The trips will originate from the new park-and-ride lot on the northeast corner of U.S. 15 and Interstate 66. The Monday-through Friday service is meant to give workers an alternative to traveling by car. It’s the...