Chapter 26 Route window W1 Portobello Junction

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PORTOBELLO JUNCTION

26 Route window W1 Portobello Junction

Introduction 26.1

26.2

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As described for Route Window W2, in order to provide space for a reversing facility at Westbourne Park the four-six track widening location will need to be moved eastwards to Subway Junction, east of Westbourne Park. The works will require the removal of existing tracks, the laying of new tracks, crossovers and turnouts, and the provision of new signalling. The final arrangement will result in the northern pair of tracks being used by Crossrail for empty stock movements to and from Old Oak Common depot; the middle pair of tracks will be used as the relief lines; and the southern pair of tracks will be used as the main lines.

Much of the works will be undertaken during possessions. However, the most significant elements of the track remodelling and re-signalling will require a two week blockade of all lines into Paddington station, together with restrictions in the use of some lines during the weeks before and after this.

During these works, the track layout at Portobello Junction will be modified to permit Crossrail services to cross between the dedicated Crossrail lines and the Great Western Main Line relief lines. The works will involve the installation of a series of crossovers. This will allow flexibility for some relief line services to be routed into Paddington without conflicting with Crossrail services.

The works will be carried out from within the rail corridor. There will only be limited access available to lorries, as almost all materials will be taken to and from the works by rail.

The drawing provided at the end of this chapter present the main features of the route window.

Baseline conditions This route window is located within the Royal Borough of Kensington & Chelsea. The intensively used rail corridor is bordered on both sides by residential areas, principally three to five storey flats, and commercial estates.

Access to sites within railway land is from Canal Way, Barlby Road, St. Ervans Road, Elkstone Road and Great Western Road (by bus depot).

The permanent works Works take place over about 850 m, wholly within the rail corridor, which lies within a 4 m cutting, approximately between Ladbroke Grove overbridge to the northwest and Barley Shotts Business Park to the southeast.

Worksite assessment No significant traffic or transport impacts have been identified that are associated with the works in this route window.

Mitigation and temporary impacts There are no significant traffic and transport impacts to report, so no mitigation is required.

Mitigation and permanent impacts There are no significant permanent impacts to report, so no mitigation is required.

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