REMOVE

1. Bulldozers

WHAT

1. Architecture -- England - … (1)
2. Street railroads -- Engla … (1)
3. Trams (see also: Street-c … (1)
4. Transportation engineerin … (1)

WHERE

1. ENGLAND, UK (1)
2. Sheffield, South Yorkshir … (1)

WHO

1. SOUTH YORKSHIRE SUPERTRAM … (1)

WHEN

1. 1994 (1)