This week’s calendar is jam-packed with events relating to street safety, bike-share and transit service. The week starts with an important hearing on the future of Fourth Avenue in Brooklyn.

With six lanes of moving traffic, Fourth Avenue is wide and dangerous. From 2006 to 2011, seven people were killed while walking on Fourth between 65th Street and 15th Street, while dozens more were seriously injured. Since last year, DOT has been meeting with CB 7 and local organizations to plan improvements to the street, and this evening the city will present its proposal at a public hearing — two days before CB 7 is scheduled to vote on it. A strong turnout in support of a safer Fourth Avenue could help save lives.

Here are the highlights — check out the calendar for the whole spectrum of events this week.

• Today: At this public hearing sponsored by Brooklyn Community Board 7, DOT will make a presentation on proposed safety improvements for Fourth Avenue. Following the public hearing, there will be a meeting of the Fourth Avenue Working Group. 6:30 p.m.
• Tuesday: For two years, Transportation Alternatives has been helping a group of young people in the Bronx fight for a safer intersection. After thousands of signatures in support of traffic calming for 172nd Street and Townsend Avenue in the Mount Eden neighborhood, they won! Join TA and the Bronx Helpers for a block party to celebrate a little victory that’s going to make a Bronx neighborhood a whole lot safer. 5:30 to 7 p.m.
• Also Tuesday: DOT will present updates on the 86th Street project and the Fourth Avenue Task Force to the Brooklyn CB 10 transportation committee. 7 p.m.
• More on Tuesday: At a meeting of the Brooklyn CB 2 transportation committee, DOT’s bike-share team will present proposed locations for Citi Bike stations. 6:00 p.m.
• Wednesday: DOT and the MTA hold an open house to present design ideas and solicit public comments on Webster Avenue Select Bus Service. 6 p.m. to 8 p.m.
• Thursday: In Sheepshead Bay, Brooklyn, there are New Yorkers who rely on buses to get from A to B. But even the most important buses in the neighborhood, like the B4, often don’t run up to snuff. Join TA, Assembly Member Steven Cymbrowitz and Sheepshead Bites for a Sheepshead Bay Transit Rider Town Hall. 7 p.m.
• Saturday: Test ride a bike-share bike, ask questions and give feedback about the program at a Brooklyn Flea bike-share demonstration. 12 p.m. to 4 p.m.

Keep an eye on the calendar for updated listings. Got an event we should know about? Drop us a line.