The phenomenon of the present postal services is the fact that, customers expect the lowest price while maintaining the availability, security and on time delivery of mail items. We can find that, the costs associated with transport of the postal substrate is one of the most important factors affecting the total cost of the postal services. These transport costs depend on various factors such as the investment in vehicles purchase, operational costs of the postal vehicles (costs of maintenance, repairs, fuel costs of the vehicle, etc.) labour costs of the drivers and so on. For this reason, it is important to find such an operational -organizational solutions that can reduce the costs associated with the transportation of postal shipments, resulting in reducing the total cost of postal services. One option to do this is to minimize the length of postal transportation routes. This article presents the approach based on the application of graph theory to optimize existing connections of postal logistics network. Published results is oriented to revaluate existing position of local centre and find a location for the new local distribution centre potentially. New location of local distribution centre can to optimize (minimize) the total transport costs of the local postal transportation network in area of the Lublin Province.
The purpose of this work was to present the public transport system operating in the city of Lublin, including its history, organizational structure, elements of line and point infrastructure, and analysis of the survey results in the form of a survey conducted among 248 people who are passengers of public transport. The questionnaire contained 20 questions whose answers were developed in the form of charts and tables and their discussions. In addition, comparative data from a study carried out in 2016 by the Municipal Transport Authority in Lublin were added to some of the results. The elaboration of results allowed the assessment of the level of satisfaction among respondents, including proposed changes submitted by the respondents. They are a suggestion for the body dealing with the organization of public transport in the city, as well as for entities performing transport within it, regarding future projects improving the operation of public transport, thus satisfying the needs of potential passengers.
Climate change is nowadays one of the most urgent challenges facing humanity. Therefore, each company, considering its good reputation, devotes a lot of attention to introducing pro-ecological solutions. This is done both at the level of processes carried out in the company and at the staff level. Regardless of the industry, there is an improvement in the awareness not only of employers but also employees in the matter of jointly caring for the environment in which they live. A number of new technological solutions are being introduced and employees are trained to stimulate and develop pro-environmental behaviour. In addition, reports are prepared containing information on the current situation in the company regarding the implementation of ecological solutions. Hence, the environmental policy of companies, regardless of the company's industry, plays an extremely important role in improving the state of the environment. The article presents examples of solutions used by one of the leading logistics operators with a range not only local or European but also global.Keywords environmental management, green technologies, teardrop trailer, CO 2 emission JEL Q55, L99
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