Boston is one of the safest cities in the United States. However, as in any big city, it’s wise to take basic precautions. Don’t fumble with your map or wallet in public, and always plan where you’re going and walk with brisk confidence. Avoid walking alone at night, and don’t park in questionable areas of town (if in doubt, use valet parking when you can). Always keep your car doors locked when parked and while driving.
Central Boston is generally well lit, but pedestrians should probably avoid Boston Common, the Public Garden and the walkways along the Charles River after dark. Although the old red-light district, the Combat Zone, is all but gone bar a couple of clubs, the section of Washington Street between Avery and Stuart Streets still has a slightly rough edge after night falls. As on all urban mass transit systems, don’t flash your mobile phones or other valuables on the MBTA. Women should exercise the usual precautions; real threats are rare, though one common nuisance is the loutish frat boys roaming the streets after the bars close.