The Road Zipper movable barrier system is proving that it can save lives on the Golden Gate Bridge. Since it was installed in 2015, there have been no head-on collisions. From 1970 until the system's installation, there were more than 100 such accidents, 16 of which were fatal. The barrier is made up of 3,517 interlocking steel and concrete pieces. Each piece weighs 1,500 pounds and is 32 inches tall. The system also helps with lane management. At peak times during the day, the Road Zipper will

16K views · 439 reactions | Have you ever seen the Golden Gate zipper truck in action?! Road Zippers, aka Barrier Transfer Machines, are used to move lane dividers and relieve congestion during rush hour. Check it out! 酪 #mysecretsf : @PermaGrin Films instagram.com/p/CLXjzZjp5zA/ | Secret San Francisco | Facebook

Dress rehearsal for the "Road Zipper"... Before the Alex Fraser Bridge moveable barrier system is put in place, along with an additional seventh lane, we're ensuring operators are well trained. | BC Ministry of Transportation and Transit

A barrier transfer machine is used to reduce traffic density. #civilengineering #theconstructor #construction #civil #engineering #civilengineeringworld #civilengineer #engineer #engineers #building #civilconstruction #constructionlife #engineeringlife #constructionworker | The Constructor - Civil Engineering Home

A not so Itsy-bitsy, teeny-weeny, yellow traffic-change machiney! Check out this barrier transfer machine at work on the Golden Gate Bridge in the US. Cool, huh? | RACQ