Are those really buss[^H]es or are they trains? You can cross the bus with the tram: https://secure.wikimedia.org/wikipedia/en/wiki/Trolleybus https://secure.

Are those really buss[^H]es or are they trains? You can cross the bus with the tram: https://secure.wikimedia.org/wikipedia/en/wiki/Trolleybus https://secure.wikimedia.org/wikipedia/en/wiki/Trolleybus ...with the articulated bus: https://secure.wikimedia.org/wikipedia/en/wiki/Articulated_bus https://secure.wikimedia.org/wikipedia/en/wiki/Articulated_b...