We report on a project with a German car manufacturer. The task is to compute (approximate) solutions to a specific large-scale packing problem. Given a polyhedral model of a car trunk, the aim is to pack as many identical boxes of size 4× 2× 1 units as possible into the interior of the trunk. This measure is important for car manufacturers, because it is a standard in the European Union. First...

Background and Objectives: Road accidents are regarded as one of the most critical global health issues. In Iran, road accidents are the second cause of death, followed by cardiovascular diseases. The present study was conducted with the aim of the epidemiological evaluation of deaths caused by road accidents in Torbat Heydariyeh City, Iran, between 2013 and 2017. Methods: This is a cross-sec...

This article investigates the effect of ambient light level on traffic flow for different types road user—pedestrians, cyclists, and drivers motorized vehicles—using counts recorded by automated counters. Previous analyses have focused only pedestrians and/or in Arlington, Virginia (U.S.) Birmingham (U.K.). The new data represent all three user one location (Cambridge, U.K.) vehicles London (U....

road accident severity may be influenced by a number of various systematic causal factors. the weather and road accidents have a close relationship with each other and a number of methods have been proposed for measuring the risk of a road accident with rainy, foggy, and snowy weather and high winds. recent studies indicate that road collision rates increase during precipitation. the weather wa...

Background Given that school-age students, as active road users, are more vulnerable to injury compared with other pedestrians, a large number of them, following an injury, may either fail to go to school at least for a short time or even suffer from disabilities for the rest of their lives. The aim of this study was to determine safe behavior in road crossing using the theory of planned behavi...

Nowadays, it is necessary to apply modern techniques for the design of road networks, especially roads passing through ecosystems such as forests, in order to reduce operating costs, prevent further degradation of the environment, increase road efficiency and achieve sustainable development goals. In this paper, a new way of designing the road is presented. New design method has the ability to ...

to cope with the urban congestion problem resulted from rapid urbanization some cities are successfully using electronic road pricing policy as a demand management measure. in 1982, hong kong governmenttook initiative to experiment electronic road pricing in hong kong. though, the project outcome reveals that electronic road pricing could bring tremendous economic, social and environmental bene...