Abstract
Identifying overloaded vehicles on a highway is essential for the safety of vehicles on the road as well as for the performance monitoring of highway infrastructure and planning. Traffic enforcement uses various weigh-in-motion (WIM) methods. Since Vehicular Telematics (VT) is favoured in the transport industry, using it for building a new WIM system to infer the payload of a vehicle at any road segment would be beneficial for the transport industry. This paper presents the effort taken to use VT data from onboard diagnostics modules and smartphones to infer the payload of a vehicle. The experiment done to find the correlation between VT data and the payload of a vehicle is discussed. Feature engineering was done; nine different settings were tested to find the best regression model. A multiple nonlinear regression model produced significant a p value of 6.322e-08 and an R-squared value of 0.8736. Results support the notion of using the VT data for nonintrusive measurement of the weight of a vehicle in motion.
Highlights
IntroductionDriving an overloaded vehicle causes various kinds of hazards such as mechanical failures and structural deformation of vehicles and roads, which lead to accidents, and it is an illegal and punishable offence in most countries
Road safety is one of the most significant issues in the world [1]
In low-speed WIM (LS-WIM), the vehicle is weighed while it moves across the scale at low speed, typically less than 15 kmph, but highspeed WIM (HS-WIM) are capable of weighing the vehicle weight at full highway speeds [5]
Summary
Driving an overloaded vehicle causes various kinds of hazards such as mechanical failures and structural deformation of vehicles and roads, which lead to accidents, and it is an illegal and punishable offence in most countries. According to the South African National Road Traffic Regulations, driving an overloaded vehicle leads to prosecution for an offence under regulations in the National Road Traffic Act, 1996 [2]. In a static WIM method, the vehicle is weighed while it is stationary on the scale. Semiportable systems, and portable systems are the three types of static WIMs in general [5]. Semiportable systems use permanent grooves, and road installations with portable scales which are only installed while weighing operations are being carried out. Portable systems use either wheel or axle scales, which are placed on the pavement surface [5]
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