There is no explicit legal requirement to operate street lighting, but it can be derived from various standards and legal norms (general duty of care Art. 1295 ABGB, public ways liability Art. 1319a ABGB, building liability Art.1319 ABGB and Road Traffic Act). There has been no supreme court ruling in Austria to the effect that street lighting was the cause of an accident or that the illumination of a zebra crossing was problematical.
ÖNORM EN 13201, Part 2-5 Road Lighting (2004): In all EU countries, this series of standards is used for planning public lighting systems.
ÖNORM O 1055 Road lighting - Selection of lighting classes - Rules for the implementation of CEN/TR 13201-1 (2017): includes provisions for dimming during off-peak periods.
ÖNORM O 1051 Road lighting - Lighting of Conflict Areas (2007): contains recommendations for lighting zebra crossings, roundabouts, car parks, etc.
RVS (Guidelines and Regulations for Highways) 05.06.11 and 05.06.12: includes limit values and criteria to avoid adverse effects of artificial lighting (e.g. illuminated advertising) on road users.