Weight Enforcement
The Transportation Research Board states that, "enforcement is a critical element of any plan for controlling vehicle weights. Without effective enforcement, including the certainty of penalties and sanctions sufficient to deter violations, weight limit laws become meaningless." It is well known and accepted that heavy trucks cause a significant proportion of damage to roads and bridges. One way to minimize the impact of heavy trucks on our nation's roadways is through intensive weight enforcement.
Traditionally, weigh stations with static scales have been used to weigh the majority of commercial carriers on the road. Where truck volumes are low, static scales are an effective method of weighing trucks. However, many weigh stations today cannot accommodate the increasingly high volumes of truck traffic, without causing unnecessary truck traffic backups, delays and allowing many carriers to bypass without ever being weighed. As well, permanent weighing sites cannot reach trucks that choose to travel on bypass routes to avoid inspection.
To address the problem of inefficient and time consuming weighing at weigh stations, IRD provides WIM Mainline and Ramp Sorting Systems, to preweigh and presort trucks prior to weigh stations. Only those trucks potentially in violation of weight regulations or other operating requirements are directed to report for further inspection. To address the problem of overloaded trucks on bypass routes, IRD provides its Virtual Weigh Station and its Mobile Weight Enforcement and Truck Inspection System.
- Weigh-In-Motion (WIM) Weigh Station Enforcement Systems (pdf - 501 kb)
- Maintaining Our Highway System Is The Challenge ... (pdf - 429 kb)
- Preserving Highway Infrastructure Using Weigh-In-Motion (WIM) (pdf - 202 kb)
- Virtual Weigh Station (pdf - 395 kb)
Slide Presentations:
- Mainline Sorting - Truck Bypass (pdf - 338 kb)
- Mainline Sorting - Truck Report (pdf - 324 kb)
- Ramp Sorting - Truck Bypass (pdf - 332 kb)
- Ramp Sorting - Truck Report (pdf - 333 kb)
- Mobile Truck Weight Enforcement and Inspection System (pdf - 1,262 kb)
(PDF files require Adobe Reader)

