"In some places, we use green stripes to help show people riding bikes where they should be positioned in the street. This is especially important when they are crossing Green Line trolley tracks or bridge joints." Very good use of photos of bike infrastructure on this Boston.gov page. #BikeInBoston #Biketooter #BikeSafety #BikeInfrastructure #Bike4Transport #Urbanism https://www.boston.gov/departments/boston-bikes/better-bike-lanes-design-elements