material horizontal barrier component 20 is affixed to stabilizer beam 11 affixation is the connection of horizontal barrier component 20 to stabilizer beam 11 by means of cables threaded and unthreaded connectors male female connecting structures and any other connecting means known in the art in certain embodiments horizontal barrier component 20 is selectively affixed to stabilizer beam 11 allowing for replacement in certain embodiments horizontal barrier component 20 is permanently affixed to stabilizer beam 11 horizontal barrier component 20 has a barrier length greater than a wheelbase of the target vehicle and a barrier width greater than an axle track of the target vehicle in embodiments where horizontal barrier component 20 is flexible horizontal barrier component 20 is also attached to spreader bar 30 because horizontal barrier component 20 includes a tension force when attached to spreader bar 30 it is u201c under tension u201d and does not roll or otherwise contract during use spreader bar 30 keeps a flexible horizontal barrier component 20 from rolling up or otherwise deforming during use in the exemplary embodiment spreader bar 30 is integrated with vertical barrier component 10 and or stabilizer beam 11 in other embodiments spreader bar 30 is separate from vertical barrier component 10 and or stabilizer beam 11 in the embodiment shown in fig1 b horizontal barrier component 20 includes an upper barrier surface 21 a and a lower barrier surface 21 b having a friction enhanced surface 21 c friction enhanced surface 21 c is a surface which increases friction between horizontal barrier component 20 and the road surface upon contact of a moving vehicle with vertical barrier component 10 friction enhanced surface 21 c.