olemus
kaldprofiiliga mehaaniline läbisõidutõke teepinnal
= a vehicle barrier pivoting from the pavement and forming a wedge shape

ülevaateid
https://bbrss.com/what-is-a-wedge-barrier-and-when-is-it-used/
https://www.sloansg.com/solutions/wedge-barriers
https://www.cnzasp.com/understanding-wedge-barriers-a-comprehensive-guide/

näiteid
https://duckduckgo.com/?q=%22wedge+vehicle+barrier%22&t=h_&iar=images&iax=images&ia=images