CHAIR SURVEY (N1, N4, N6, N8, NW3, NW5, SE1) - ONGOING
 N1 |
 N1 |
 N1 |
 N4 |
 N4 |
 N6 |
 N6 |
 N6 |
 N6 |
 N6 |
 N6 |
 N8 |
 N8 |
 N8 |
 N8 |
 N8 |
 NW3 |
 NW5 |
 NW5 |
 NW5 |
 NW5 |
 NW5 |  SE1 |
 SE1 |