Characterization of heavy traffic on the Swedish road network

One of the key parameters in predicting the deterioration process of pavement structures is linked to the heavy traffic characteristics. The heavy traffic loading has been commonly expressed in pavement design methods through an equivalent number of repetitions of standard axle loads (ESAL’s). Recent pavement distress models, used in new mechanistic pavement design methods, require more detailed description of the heavy traffic. In Sweden, a Bridge Weigh-In-Motion (BWIM) system has been used to collect information about the heavy traffic on the road network. The system provides information about the vehicles’ time of passing, speed and lane, the number of axles and their configurations and weights. A national BWIM network was established in 2004, consisting of twelve locations which are measured during one week every year. The network consists of motorways, arterials or trunk roads as well as one county road. This, therefore, provides a basis to establish an Axle Load Spectra (ALS) which gives the load distribution of steering axles, other single axles, tandem and tridem axles. As very few quad axles are registered they have been neglected.

MEET US


5-6
Dec

Vision Zero for Sustainable Road Safety in the Baltic Sea Region

The conference Vision Zero for Sustainable Road Safety in the Baltic Sea Region is held i Vilnius, Lithuania. VTI is part of the organisation committé and also one of the speakers.

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2018-10-05

Users contribute to the development of train simulators

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2018-10-03

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2018-10-02

Non-native plant species spread via transport systems

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2018-09-20

EU-project VIRTUAL: improving road safety with virtual crash tests

Crash tests are used to improve safety on roads. Therefore the EU now funds a research project to develop virtual methods of crash testing. VTI coordinates the project, called VIRTUAL. The project now invites experts interested in Human Body Modeling to join...


2018-08-28

EU project protects cyclists and pedestrians

According to the World Health Organisation, more than one quarter of road traffic fatalities in 2010 were pedestrians and cyclists. Every year, about 335,000 unprotected road users die because of traffic accidents, which shows the scale of the problem. The EU...


2018-08-21

Swedish organisations in EU project on traffic safety and crash testing

Crash safety testing is one of the tools used to improve safety on roads. The EU is therefore funding a research project that started recently to develop virtual methods of crash testing. The long-term goal is to supplement the physical evaluation of crash...