(29 Feb 2016, 5:41 pm)G-CPTN wrote Optare was formed in early 1985 when Leyland closed the Charles H Roe premises in Leeds (next door to the Vickers tank factory), and, when Ashok Leyland acquired Optare they financed a new-build factory at S-i-E.
Optare plc can be considered the successor company to the historical British bus manufacturers Charles H Roe (through Optare), founded in Leeds in 1923, and East Lancashire Coachbuilders, (through Darwen), founded in 1934 in Blackburn.
When coming out of Leeds and heading north towards York, you can see where the railhead was for the site at Crossgates.