SEATTLE (AP) — Motorists may now cross the lower West Seattle swing bridge from 9 p.m. to 5 a.m., while the city considers opening the two-lane span to additional users. The Seattle Times reports the change takes effect immediately. It will relieve some drivers from a 4-mile (6 kilometer) detour using the First Avenue South Bridge. The Seattle Department of Transportation also says public and private school buses may travel the swing bridge at all times. The agency says the slight easing of the restrictions is a prelude to adding other groups this fall, subject to automated camera enforcement that records license-plate numbers.