Component costs and operation/maintenance costs for various-level fixed weigh stations.
A benefit-cost analyses for existing fixed weigh stations and other enforcement sites was conducted as part of a study to provide recommendations to the Michigan DOT (MDOT) and the Michigan State Police (MSP) on the best enforcement strategies and enhancements for existing weigh stations to increase efficiency and effectiveness of the state’s enforcement activities.
In the study, four cost components were identified:
- Construction/installation/upgrade costs
- Operating costs
- Labor costs
- Maintenance costs
Table 1: Cost components of construction/installation of a basic fixed weigh station
* Based on recent cost estimates made by MDOT for a weigh station in Fowlerville, MI.
|Fixed Weigh Station Component||Cost|
|Static Scale Pavement||$37,000|
|Pavement leading to Parking||$309,000|
|Lights, static scale, speakers, lights for inspections||$477,905|
For other fixed weigh station levels, costs were determined according to the extra technologies and features present on each level in addition to those present at a basic fixed weigh station. These distinguishing features include mainline weigh-in-motion (WIM), low-speed WIM with bypass lane and preclearance systems. Table 2 presents a summary of the costs for each level of fixed weigh station.
Table 2: Construction/installation cost components by fixed weigh station levels
|Installation/Construction Components||Basic||Intermediate||Advanced||Most Advanced|
|Construction of New Basic Fixed Weigh Station with Static Scale||$2,306,905||$2,306,905||$2,306,905||$2,306,905|
|MoveForward Variable Message Signs (VMS)||$21,904||$21,904||$21,904||$21,904|
|Low Speed WIM||$156,176||$156,176|
|Overheight Detector (OHD)||$110,000||$110,000|
Table 3: Summary of average annual operating and maintenance costs by fixed weigh station level
|Annual Operating Cost 1||$9,094||$25,486||$22,651||$31,655|
|Annual Labor Cost2||$41,969||$143,894||$155,406||$287,289|
|Annual Maintenance Cost3||$11,000||$15,000||$37,800||$38,000|
1 Based on the consumables and utilities spent at the enforcement site as provided by MDOT
2 Determined as $46.12 x (average daily working hours) x number of working days per year
3 Considered pavement maintenance, pavement markings and maintenance of the building structure and other components which were made available by MDOT.