NH-154 (Bairabi Road), Bairabi khaw bula Leihlawn hi a Rated Load Capacity aia rit Truck-te tan zawh phal a nih loh chungchangah a chhan leh thil awmdan hetiang hi a ni e. He Leihlawn hi 24R Load class a ni a, two Axle wheeled vehicle (Truck pangngai) 20Metric Tonne aia rit tana zawh tura siam a ni lo. Truck ruak rih zawng hi 8 Metric Tonne  vel a ni a, chuti a nih avangin a tam berah 12 Metric tonne aia rit bungraw phur motor tan he Leihlawn hi zawh phal a ni lo.
12-Metric Tonne aia rit phur motor tan he Leihlawn zawh phal a nilo hi tunhnaia tih thar a ni lova. Hei hi a Leihlawn dawh tirh 1991 atangin a rated safe load capacity aia tam phur tan zawh hi phalloh a ni sa reng a ni.  Amaherawhchu, tunhma hun engemawti atang khan phalloh ani chungin mi thenkhatin an lo zawh lui thin zawk niin a lang. Leihlawn hi a lo upat tak avangin fimkhur lehzual angaia chuvangin Load phal chin tuk hi uluk lehzuala kenkawh a ni ta mai a ni, hei hi mipui him zawkna tur leh harsat lehzualna a thlen loh nana tih a ni.

Tin, India ram kawngah maximum permissible axle load chu 8.17 Metric Tonne a ni a He Leihlawn a truck load phurh phal chin hi permissible axle load ai hian a sang zawk a ni.

Tin, he Leihlawn hi Bairabi Rail Station panna kawngpui awm chhun a ni a, a chim palh hlauh chuan Zoram mipui tan a harsatna liantham tak a thlen theih dawn avangin Load phal chin aia tam phur chung a zawh lo hram turin hriattir leh ngen kan ni.