Roads and bridges are designed to meet the transportation demands for traffic volume and loading. Knowledge of the actual traffic is needed for a rational management of highway infrastructure. There are various procedures and equipment for measuring truck weight, including static and in weigh-in-motion techniques. This paper aims to compare four systems: portable scale, stationary truck weigh station, pavement weigh-in-motion system (WIM), and bridge weigh-in-motion system (B-WIM). The first two are reliable, but they have limitations as they can measure only a small fraction of the highway traffic. Weigh-in-motion (WIM) measurements allow for a continuous recording of vehicles. The presented study database was obtained at a location that allowed for recording the same traffic using all four measurement systems. For individual vehicles captured on a portable scale, the results were directly compared with the three other systems’ measurements. The conclusion is that all four systems produce the results that are within the required and expected accuracy. The recommendation for an application depends on other constraints such as continuous measurement, installation and operation costs, and traffic obstruction.

Development of sustainable transportation is a process which involves promoting efficient transport systems meeting social expectations, while reducing any sub-optimal or harmful effects on public health, natural environment, economy and urban planning. Therefore, in the case of passenger transport, the most effective measure to achieve sustainable transport development is to maximize the share of public transport. This paper analyses trends in changes of demand for passenger transport in European Union Member States, in Poland and in Kujawsko-Pomorskie province, including in urban and non-urban areas. Based on collected data and extensive transport-related research of the authors, including surveys of residents, the most important conditions have been defined which affect passenger transport demand in Kujawsko-Pomorskie province, and a forecast has been attempted of the demand in three different scenarios of economic development (optimistic, stable and regressive) for various years. The projected public transport demand has been established on the basis of simulations using a proprietary transport model. Results of these calculations revealed surprising conclusions which indicate unfavourable trends in changes of the analysed demand and insignificant differences in projected transport needs, regardless of the selected economic development option for the country and the province.

This paper presents the results of analyses of the influence of changes in spatial management on changes in the emissions of selected harmful chemicals and road traffic noise. The analyses were carried out for different scenarios of urban development: from a compact city with densely developed areas and a higher residential density to a diffuse city, where residents live in suburban areas with good quality of air, but have to spend a lot of time commuting to work and school. The results of traffic modelling analyses considering transport needs of a specific urban area enabled the determination of possible effects of a spatial planning policy on the residents’ standard of living and the influence of the policy on natural environment. The article ends with conclusions and recommendations for planning the development of a city's spatial management from the point of view of the transport needs of its residents and the impact of their everyday trips on the environment.