The connection between public lighting modernisation and light pollution : The Dunaújváros pattern

Proper street lighting has psychological, ecological and economic functions. Not only does it provide safety in settlements at night, but it also makes streets friendlier. Inadequate quantity and quality of street luminaries can cause troubles in the ecosystems of settlements. Public lighting management is the responsibility of local governments, and therefore it matters how much the operation and maintenance burden the budget. The modernisation of the obsolete street lighting system and the installation of a reliable and energy-saving (cost-effective in the long run) system is taking place in more and more places. Large cities (domestic cities with county rights) deserve special attention due to the concentration of the population, functions and through them the concentration of environmental impacts.