Presentation on theme: "A Pavement Damage Based System For Charging HGVs For Their Use Of Road Infrastructure Nii Amoo Dodoo and Neil Thorpe School of Civil Engineering and Geosciences."— Presentation transcript:
A Pavement Damage Based System For Charging HGVs For Their Use Of Road Infrastructure Nii Amoo Dodoo and Neil Thorpe School of Civil Engineering and Geosciences Transport Operations Research Group (TORG) University of Newcastle upon Tyne, UK Highways: cost and Regulation in Europe 26 – 27 November 2004, Bergamo Italy.
Outline of Presentation Introduction and Background Factors Affecting Pavement Damage Overview of Charging System Development of System Results of Initial Trials Conclusions and Next Steps
Background EU transport policy Closer relation between charges and costs HGV Charging Systems Various methods and systems but….
HGV Charging Systems CountryDynamic Axle Weight Number of Axles Type of Axle Tyre Properties Pavement Properties Distance Travelled New Zealand X XXX Eurovignette X XXXX HELP (US) ()() XXX Switzerland X XXX Austria X XXX Germany X XXX
Overview of the System Dynamic Axle Forces GPS Satellites On-Board Unit Cellular Tower Back-Office System Pavement Database Damage Tariff Tables Bill Vehicle position, Dynamic axle forces, distance,speed, date&time Digital Road Map
On-Board System Components On-board Unit Axle Weighing Unit
Initial Field Trials Description of Field Trials Data processing procedure Uploading of recorded data Map-matching vehicle positions Pavement properties of road links Estimation of pavement damage
Map-Matching Vehicle Positions
Results from Map-Matching Link ID Road Number Road NameRoad Class Chainage on Link Distance Travelled N’BRIAN ROAD Minor B1326N’BRIAN ROAD B A19- A A19- A A19- A A19- A A1058COAST ROAD A A1058COAST ROAD A
Pavement Properties of Map-Matched Road Links Link ID Road Number Chainage on Link Pavement Type Roughness Category Pavement Thickness FLEX2THIN 74565B RIGID2THIN 73179A FLEX1THICK 73179A FLEX1THICK 71861A FLEX2THICK 94259A RIGID3THIN 94432A RIGID2THIN 94387A RIGID3THICK
Sample of Axle Load Data
Results of Initial Trials Link ID Axle Wt. (t) Av. Veh. Sp (km/h) Pav. Type Pav. Thickness Pav. Rough Damage Tariff (per m) Distance Travelled (m) Relative Damage Caused FLEXTHIN RIGIDTHIN FLEXTHICK FLEXTHICK FLEXTHICK RIGIDTHIN RIGIDTHIN RIGIDTHICK Total Estimate of Relative Damage208.7
Potential Benefits of the System Improved system for cost recovery Knowledge on the occurrence of pavement damage Improved loading practices A more pavement-friendly HGV fleet
Conclusions and Next Steps Data requirements Pavement database, data compatibility Recruitment and equipping of additional HGVs for road trials Evaluation of system and recommendations for future development