Accelerated load testing of pavements: HVS-NORDIC tests in Sweden 1999

Leif G Wiman

In 1997 Finland and Sweden jointly invested in a Heavy Vehicle Simulator, HVS, from South Africa. After the first period in Finland the HVS-NORDIC was moved to Sweden and VTI (Swedish National Road & Transport Research Institute) in Linkoping in September 1998.

A program for research co-operation in the area of accelerated pavement testing has been agreed between Finland and Sweden covering the years 1997-2003.

The general objective of the research co-operation is to learn more about pavement response and pavement performance. A second but most important objective is to learn about the HVS-machine itself and the way it simulate traffic and deteriorate pavements and how this is related to real pavement performance.

During the first year in Sweden, 1999, tests were performed as planned in the research program on typical Swedish low volume road structures. The results from these tests are presented in this report.

The HVS-NORDIC is a mobile linear full-scale accelerated pavement-testing machine (HVS Mark IV). At VTI there is an indoors full-scale pavement test facility where pavements can be constructed by ordinary road construction machines.

During the first year in Sweden four structures were tested. The first two tests (SE01 and SE02) were performed on newly built pavements (gravel/bitumen type with thin asphalt surface layers) while the other two were performed after rehabilitation of the first two after completed tests. The rehabilitation measure was milling and levelling (overlay in the milled area) of the surface layer to get a new even surface without rutting.

The results evaluated in this report are the results from the pavement performance measurements, (rutting and deformation). A large amount of data has been collected during the pavement response measurements. These data, stresses, strains and deflections during a variety of test conditions will be used later for comparison of the test structures and for analysis of relations between pavement response and pavement performance.  



Shipping and the environment – research meets reality

Centre for Transport Studies (CTS) in co-operation with Ports of Stockholm invite you to the seminar Shipping and the environment – research meets reality.



Simulation of cut-in by manually driven vehicles in platooning scenarios

A study in a VTI-driving simulator has showed that a platoon will be able to handle a cut in from a manually driven car. The results of this study have recently been presented at two conferences in Japan.



The five-year anniversary of European Road Profile Users' Group (ERPUG) Forum will take place at Ramboll head quarter, Copenhagen, Denmark October 19-20, 2017.


Self-driving buses in Sweden next year?

A self-driving, fossil-free bus. This idea might become reality through a forthcoming collaborative project involving the Swedish National Road and Transport Research Institute (VTI), Linköping University and several other participants. The project group aim...


New climate-proof solutions for hard surfaces in cities

High-density road infrastructure that emphasise maximum durability and minimum maintenance create inflexible systems, which put increased stress on urban trees and lead to increased risk for flooding. Over the past five years, the ‘Climate-proof solutions for...


VTI is preparing for automated vehicles

Automation of traffic systems will lead to major changes. The European Union’s (EU) CoEXist research project began in June 2017 with the aim of preparing cities and road operators for the introduction of self-driving vehicles. The Swedish National Road and...


Vehicle Driver Monitoring: sleepiness and cognitive load

To prevent road crashes it is important to understand driver related contributing factors, which have been suggested to be the critical reason in 94 per cent of crashes. The overall aim of the project Vehicle Driver Monitoring has been to advance the...