 $3.31, which is about 22 cents below the national average. AAA is projecting 3.5 million people in New England will travel 50 miles or more from home. Three million of those will be driving. If traffic is heavy enough in southernmost Maine, it may trigger the first use of shoulder lanes as travel lanes on I-95 at the Maine-New Hampshire border. Overhead signs and arrows will indicate when that's being allowed.