4. Conclusion

Infrastructure management is a rapidly evolving field; its major challenge today is to increase its use without creating new routes, which are increasingly costly and difficult to integrate into the landscape.

Economic regulation – particularly through modulated pricing – and technological innovations (in both vehicles and operating systems) will provide answers to this major challenge, the scale of which is still poorly understood in relation to what is at stake.

The issue is also institutional. Isolated infrastructures are (relatively) easy to manage and finance. But they offer only limited possibilities for regulation. Larger networks, or at the very least coordinated (ultimately on a European scale) in terms of operation, will broaden the possibilities in this area.