Studio Matrx Monthly · Volume 1 · Issue 2 · July 2026
Amogh N P
 In loving memory of Amogh N P — Architect · Designer · Visionary 
Boom barrier & lanes

Boom Barrier Calculator

A boom barrier passes one vehicle per open-close cycle, so the cycle time sets the flow. Enter the peak vehicles per hour, the cycle time and the lane width to get the lanes (barriers) needed, the throughput per lane and the boom arm length. Planning figures; runs in your browser.

0
Boom barriers / lanes
0
Veh / hr / lane
0.0 m
Boom arm
0
Spare veh/hr
Total capacity
600 veh/hr
480 veh/hr of headroom over the peak
Speed the cycle, don’t just add lanes
  • Manual check (~12 s)300 veh/hr
  • RFID card (~6 s)600 veh/hr
  • FASTag / ANPR (~3 s)1200 veh/hr

Indicative planning estimate only — a specialist sizes and installs the barrier and you verify on site. Keep the barrier well inside the entry so a queue never backs onto a public road; a ground safety loop or sensor MUST stop the boom closing on a vehicle or person; and match the barrier’s duty cycle to the traffic so the motor is not overworked.