Seattle is home to a very nice set of bike lanes. People who use these must ensue that they are following the proper protocol. This helps to keep everyone safe, regardless of how people are getting around. There are special guidelines for bicyclists, pedestrians, wheelchairs and vehicles.
Some of the Seattle bike lanes are part of Vision Zero, which is a plan the city has to eliminate serious injuries and fatalities due to traffic incidents. The goal date is 2030, so the goal is rather lofty. Many of the bike lanes in the city are protected lanes, which means that they have a barrier between the bike lane and the vehicles.