No abstract

This article presents the results of the analysis of waste collection in selected rural and urban municipalities in the Silesian Voivodship in Poland in the years 2014-2018. A new approach has been presented for the evaluation of the economic efficiency of the waste management system including all costs and revenues both for the local administration and the waste collection company in a circular economy context.The results include the impact of significant factors affecting the total cost of collection, which include transportation costs, personal costs, as well as administrative costs, including fees for using the environment and the fee for waste management at the landfill. The mass from the separate collection increased for three municipalities from 2014, showing a positive impact of the new regulations considering secondary raw materials for recycling. In the five years of the study, the variable purchase prices of recyclable materials adversely affected the economic efficiency of the collection, which increased fees charged by municipalities to residents. The increase in costs was significant for the five years included in the study for a landfill fee increase of 40%, for an environmental fee increase of 15% and an increase of waste collection costs above 20%. The main contribution of revenues is the waste collection fee from residents. As a consequence, the municipalities must increase waste collection fees. Due to a much larger number of waste categories and unstable purchase prices of secondary raw materials, waste-collecting companies should pay attention towards reducing transport costs and using human resources more efficiently.

No abstract

No abstract

Vehicle onboard travel planning systems have been developed in recent years. Since the development of GPS-based devices equipped with digital mapping applications for many vehicles, route planning has become easier and more convenient for drivers. Although such systems are used by drivers, for delivery or courier companies, it is especially important to provide a high-quality service, which involves the timely delivery of goods. Traffic management authorities are also interested in acquiring data on road and traffic conditions to verify the effectiveness and smoothness of the flow of vehicles. This paper proposes a method for traffic data collection and an application for recording data of variable factors having impact on a vehicle speed in cities and agglomerations. Data acquisition and identification of factors having impact on reduction of vehicle speed in the cities has been presented for a case study of Gliwice. The results can be useful for traffic management authorities, municipal traffic, road planning departments and mobile apps designers.