Can you believe it's been 21 years since Nottingham welcomed its new tram system? These days, we barely bat an eyelid as the green trams glide past us. However, back in 2004, the reintroduction of ...

Marcelo Benoit examines the two cases. Having dismantled a suburban railway and aborted a monorail scheme, the Brazilian city of Salvador is now developing a tram network using second-hand trams and ...