Doreen McIntyre from campaign group 'Harefield Against HS2' spoke to our Political Correspondent Simon Harris and described how a new viaduct planned for the building of HS2 would change the face of the area.
More top news
George Michael died in December last year at the age of 53.
PC Keith Palmer, 48, stabbed by Khalid Masood while on duty in the grounds of the Palace of Westminster last Wednesday.
Those gathered on the bridge fell silent at 2.40pm - the time the first call was made to police exactly seven days ago.