Clean Air Fund - shrubs

Meeting: 
MQT on 2011-10-12
Session date: 
October 12, 2011
Reference: 
2011/3132
Question By: 
Mike Tuffrey
Organisation: 
Liberal Democrats
Asked Of: 
The Mayor

Question

In answer to MQ 2541/2011 you stated that £1m of the £5m Clean Air Fund will be spent on Green Infrastructure (Green Walls, Green Screens and additional Tree and Shrub Planting). Please detail how many walls, screens, trees and shrubs will be planted/installed; at what cost; and where and when they will be on London's streets?

Answer

Answer for Clean Air Fund - shrubs

Answer for Clean Air Fund - shrubs

Answered By: 
The Mayor

Final tree and shrub numbers cannot be confirmed until completion of the trial pits and measurements currently underway. We cannot plant at every PM10 hotspot owing to a lack of available space or unsuitable underground conditions. The planned green infrastructure measures, estimated numbers and measures where known, and cost estimates are set out below. The trees and shrubs will be planted in the planting season (November to March) and the dates for the other measures are stated below:

• 50 planted towers have been installed along Lower Thames Street in lieu of green screens between pedestrians (receptor) and vehicles (source). Cost including maintenance until the end of March 2012 is £52,000. • A green wall will be installed at Edgware Road LU station, adjacent to Marylebone Road, in November. Cost including three years maintenance is circa £120,000. • A green screen on a TfL site hoarding on Southwark St to complement the adjacent one installed by Better Bankside. Cost estimate is £3,000. • Park Lane, Westminster - Birch trees at the southern end, a new avenue of Plane trees and a new hedge on the northbound side, new shrub beds to replace hard surfaced areas, shrub bed renewal. Cost estimate is £90,000. • Marylebone Road, Westminster - additional street trees. Cost estimate is £10,000. • Lambeth Bondway, Lambeth - shrub bed renewal. Cost estimate is £10,000. • Woolwich Flyover, Greenwich - replacement of declining Poplar trees and scrub with 75 trees (Birch and Western Red Cedar) and 336 shrubs. Cost estimate is £125,000. • A4 Brentford, Hounslow - 23 additional street trees. Cost estimate is £16,000. • Upper Thames St, City - 5 additional street trees and shrub bed renewal. Cost estimate is £10,000. • A2 Old Kent Road, Southwark - shrub bed renewal. Cost is £57,000. • A23 Brixton Road, Lambeth - additional street trees. Cost estimate is £30,000 • A40 and A406 near Hanger Lane - 75 additional street trees. Cost estimate is £33,000. • A4 Heston Road, Hounslow - 40 additional street trees. Cost estimate is £21,000. • Blackwall Tunnel (N), Tower Hamlets - shrub bed renewal (1,000m2). Cost estimate is £15,000. • A40 Western Ave, Ealing - 200 additional street trees (Limes). Cost estimate £106,000. • Swiss Cottage, Camden - shrub bed renewal. Cost estimate is £13,000. • Old St, Hackney - shrub bed renewal. Cost estimate is £2,000.

TfL is also working in partnership with 3rd parties to provide the following measures, subject to agreements with the parties concerned.

• 9 additional street trees plus footway build-outs on City of London land adjacent to Lower and Upper Thames Street. Cost estimate £44,000 (City of London to provide match funding). • A green wall on the rotunda at the Museum of London. Cost estimate £52,000. • Green screens on hoardings are also proposed at Crossrail and other construction and waste sites under the Cleaning & dust suppressant package. Cost to be confirmed.