Controlled Access: Bollards and Ground Spikes

A detailed view of vehicle control at the entrance of a pedestrian zone. On the ground, there is a row of three to four automatically retractable metal bollards, about twenty centimeters in diameter, rising to about eighty centimeters when extended, with a matte dark gray stainless steel surface and a reflective ring at the top; the clear distance between bollards is about 1.2 meters, wide enough for wheelchairs and strollers to pass but blocking cars. Next to it is a thinner fixed bollard, a small control box, and a sensor. The bollard recesses on the ground are circular metal covers flush with the pavement, with a material similar to the surroundings. A permitted delivery truck is waiting for the bollards to retract. The entire set of facilities is discreet and does not resemble a road barrier. Avoid: using plastic barricades and obvious temporary road barriers, making the bollard spacing too narrow for wheelchairs to pass, making the recesses noticeably uneven with the pavement, adding a large number of warning signs.

Translated from Chinese by AI.

一個徒步區入口的車輛管制細部。地面上有一排三到四根可自動升降的金屬柱,直徑約二十公分,升起時高度約八十公分,表面是霧面的深灰不鏽鋼,頂端有一圈反光環;柱與柱之間的淨距約一米二,足夠輪椅與嬰兒車通過但擋住汽車。旁邊有一根較細的固定柱與一個小型的控制箱與感應器。地面上柱子的收納口是與鋪面齊平的圓形金屬蓋,材質與周邊接近。一輛獲得許可的貨車正在等待柱子降下。整組設施低調而不像路障。避免:使用塑膠拒馬與明顯的臨時路障、把柱子的間距做得無法通過輪椅、讓收納口與鋪面明顯不齊平、加入大量的警示標誌。