Speed Bumps That Flatten for Slow Speeds: "These speed bumps can be configured so that if a car is going below 30km/h, the speed bump flattens; over 30km/h, the force causes the retractor to stay closed, keeping the speed bump active."
Thursday, December 11, 2008
Speed Bumps That Flatten for Slow Speeds
Speed Bumps That Flatten for Slow Speeds: "These speed bumps can be configured so that if a car is going below 30km/h, the speed bump flattens; over 30km/h, the force causes the retractor to stay closed, keeping the speed bump active."
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