MANHATTAN. The city is on schedule to double its number of bike lanes by 2009, a Department of Transportation spokesperson said yesterday, with more than 160 miles set to be installed in the next two fiscal years. That follows the 60 miles already added since September 2006, and the introduction of experimental, high-visibility lanes on Henry Street in Brooklyn.But the inevitable spike in riders that comes with this expansion has also increased safety concerns. A 2006 report said that nearly 3,500 bicyclists were injured between 1996 and 2003, with 24 riders killed in 2005 alone. The vast majority of those accidents were caused by poor driving or riding behavior.In response, a coalition of agencies -- including the DOT, the Department of Health and the NYPD -- launched the city's first official bicycle safety campaign in Union Square yesterday, in an effort to keep the streets safe."At DOT we've committed to expand the city's bicycle network at an unprecedented pace, and today we're asking all New Yorkers to do their part to make our streets safe," said Transportation Commissioner Janette Sadik-Khan in a statement. "The idea behind this campaign is simple -- we're asking everyone to accept the responsibility to look out for each other."The "LOOK" campaign, which features visuals of bike lanes running off the road or onto the hoods of cars, was created free-of-charge by Publicis, a Seattle-based advertising agency. It was funded by $1 million from the NYC Bicycle safety coalition, and will run at bus shelters, taxis, gas stations and other locations.Several "hot spots" where accidents occurs most often, including the intersection of Pacific and Flatbush avenues in Brooklyn and the Lower East Side, will receive the most coverage.The campaign will run in conjunction with a recently announced scheme to distribute free safety helmets, launched after laws were introduced in July that require all commercial cyclists to wear them. A DOT spokesperson said that more than 5,000 helmets have been given away in all five boroughs since June.The new campaign was applauded by transportation advocates."These forceful ads will prevent collisions, save lives and affirm cyclists' responsibilities and rights to the road," said Paul Steely White, executive director of Transportation Alternatives, in a statement.