Cambridge Alexander ALX300 on St. Andrew's Street at Emmanuel Street, May 22, 2008 Alexander ALX300 on St. Andrew's Street at Emmanuel Street, May 22, 2008 Alexander ALX300 on Emmanuel Street at St. Andrew's Street, May 22, 2008 Alexander ALX300s on Emmanuel Street at St. Andrew's Street, May 22, 2008 Alexander ALX300 at the Cambridge Rail Station, May 22, 2008 Dennis Trident on St. Andrew's Street at Emmanuel Street, May 22, 2008 Optare Solo on St. John's Street near Green Street, May 22, 2008 Optare Solo on Trumpington Street at Silver Street, May 22, 2008 Optare Solo on Trumpington Street at Silver Street, May 22, 2008