tony albert mounts cameras to their bikes, records and posts it on you tube from cyclists who blow through lights, to bad driver who's turn without sig thaling or looking. >> a turn signal, please. >> >> reporter: to car that's fly by. many don't realize they're doing anything wrong. >> do you know the door zone? you don't have to ride in the middle oochlt yes. when people open their door of a parked car, they can kill me by throwing me into the path of a vehicle. >> reporter: i team found cyclists and drivers are equally responsible for the accidents but cyclists are getting hurt nine out of ten accidents wex took our cameras to the streets to see what is going on. we saw riders running stop lights, wearing no helmets and weaving in and out of cars. the national transportation safety board reports in 2011, 677 cyclists were kill add cross the country accounting for 2% of all traffic fatalities. in san francisco, four cyclists died this year. but the city is expanding the number of bike lanes from 54 to 79 miles, it has many drivers feel like they're being pinched off the roadway >> if the

tony albert mounts cameras to their bikes, records and posts it on you tube from cyclists who blow throughghts, to bad driver who's turn without sig thaling or looking. >> a turn signal, please. >> >> reporter: to car that's fly by. many don't realize they're doing anything wrong. >> do you know the door zone? you don't have to ride in the middle oochlt yes. when people open their door of a parked car, they can kill me by throwing me into the path of a vehicle. >> reporter: i team found cyclists and drivers are equally responsible for the accidents but cyclists are getting hurt nine out of ten accidents wex took our cameras to the streets to see what is going on. we saw riders running stop lights, wearing no helmets and weaving in and out of cars. the national transportation safety board reports in 2011, 677 cyclists were kill add cross the country accounting for 2% of all traffic fatalities. in san francisco, four cyclists died this year. but the city is expanding the number of bike lanes from 54 to 79 miles, it has many drivers feel like they're being pinched off the roadway >> if they w

cyclists like tony albert routinely mount cameras to their bikes. tony records and posts it all on youtube from cyclists who blow through lights. >> oh, come on, man. >> to bad drivers who turn without signaling or looking. and cars that fly by. >> whoa. >> way too close. many drivers don't even realize they are doing anything wrong. >> hey, man. you know about the door zone? dude. >> yes. when people open their doors they can kill me. >> drivers aren't always the ones getting in the way. the california highway patrol found cyclists and drivers are equally responsible for accidents in the bay area but cyclists are getting hurt in 9 of 10 accidents. we took our i-team cameras to the streets to see what is going on. time after time we saw riders running stop signs and lights cruising along traffic wearing no helmets and weaving in and out of cars. >> the numbers show how serious this issue is nationwide. the national highway traffic safety administration reports in 2011, 677 cyclists were killed. that accounts for roughly 2% of all traffic fatalities.