Roanoke County, Virginia. Roanoke County is a county located in the U.S. state of the Commonwealth of Virginia. As of the 2010 census, the population was 92,376. Its county seat is Salem. Roanoke County is part of the Roanoke, VA Metropolitan Statistical Area and located within the Roanoke Region of Virginia. The independent cities of Roanoke and Salem (incorporated as such in 1884 and 1968 respectively) are located within the boundaries of Roanoke County, but are not a part of the county.
Your car stalls at stop light is caused by either fuel or air hesitations when the injectors air/fuel mixtures are out of proportion. You can also put a pint of Gas Treatment in your gas tank to see if it can do any help.
There are plenty of occasions where you might find your car idling. In a long drive through, picking someone up from work, or just sitting in your driveway. If you're idling longer than 10 seconds, though, you're better off turning off the engine. Obviously, it's a bad idea to shut your car off at an intersection. However, a common myth is that you waste more gasoline starting your car than you would by idling. This is technically true, but only for about 5-10 seconds.