Transport policy must address the influence of specific kinds of transport on the environment, widely defined. Studies and design work regarding transport investments are currently being conducted, and many professional groups are pointing to the need to implement various transport projects in the near or distant future. Such investments not only disturb the environment, but also will stimulate changes in regional and national physical planning. The author suggests that transport policy should be subject to environmental impact statements. The main items of transport policy should be reviewed in terms of their compliance with the targets and priorities of the national environmental policy.
The trolleybus ranks second in the classification applied in sustainable development, after the bike and before the tram, railway and bus transport. Despite this, trolleybus routes are closed down quite frequently: now it is planned in Tychy. The decision on elimination of this form of transport is based only on operational costs, slightly higher than those of the bus routes. Environmental, social and medical considerations are not taken into account. The author proves that elimination of the trolleybus transport is both harmful and economically infeasible, using Tychy as an example.