Bollard akpaaka

Bollard akpaaka (nke a na-akpọkwa bollard na-ebugharị akpaaka ma ọ bụ bollard eletriki ma ọ bụ hydraulic bollard) bụ ihe mgbochi nchekwa, ụdị ọkwa ebuli emebere iji chịkwaa ịnweta ụgbọ.
A na-arụ ya site na njikwa anya ma ọ bụ ngwa ekwentị ma ọ bụ bọtịnụ ntinye, enwere ike itinye ya na mgbochi ebe a na-adọba ụgbọala, ọkụ okporo ụzọ, mkpu ọkụ, njirimara efere ikike, sistemụ igwefoto njikwa ụlọ.