Mladen Nikšić

Railway Development from the Aspect of Environmental Protection

General development of civilisation and constant growth ofpopulation have inevitably resulted in an increased volume oftraffic and energy consumption. One of the consequences isalso the adverse effect on the environment, i.e. people, climateand nature. Compming individual forms of transport, it may benoted that railway, as mass carrier in passenger and freight trafficplays a significant role and has great responsibility. Sincerailway represents a very convenient form of transport regardingboth power and ecology, it has to provide significant contributionto the passenger and freight transport in the future, in a waywhich is friendlier to the environment than most other forms oftransport.This work analyses the cun-ent and future role of railway inthe transportation of people and goods. It mentions the mostimportant strategic orientations in the railway development,that would render it competitive and attractive compared toroad and air traffic. Special emphasis is put on economic efficiency,ecological sustainability and social justice. The possibilitiesof reducing energy consumption, i.e. C02 emissions, aswell as reducing hannful exhaust gases of Diesel railway tractionvehicles are given special consideration.

Modelling of Locomotive Normal Load

The paper deals with two topics. The one is strictly railways,that is theoretical theses for calculation of locomotive load atrespective gradient. The second is an overview of computer programMS Access with the basic terms and definitions includedin the program itself It is intended to bring closer the languageof information technology to the railways. The developed programfor calculating the allowed mass of trains that can behauled by certain locomotives enables fast calculation of any ofthe traction variants. A limitation related to mass has been includedin the program.