New roads at Hampton Wood and top of Poppintree, Ballymun

Meeting: 21st October 2010

Part 8 Proposal for modifications to the existing road network at Balbutcher Lane North and South, Poppintree Park Lane West, Hampton Woods Access Road, Ballymun, Dublin 11.

1. INTRODUCTION

The Roads and Traffic Department of Dublin City Council intend to carry out a Part 8 planning procedure under the Planning and Development Regulations 2000 – 2010 for modifications to the road network at Balbutcher Lane North and South, Poppintree Park Lane West and Hampton Woods Access Road. The modifications will involve the realignment of Balbutcher Lane North and South, Poppintree Park Lane West, the internal access road at Hampton Woods and the replacement of the existing roundabout with a signalised junction. The realigned roads and junction will connect with the Hampton Woods development to create a new road connection to the R104, St. Margaret’s Road, as previously permitted in Reg. Ref. 4387/03.

2.0 CONTEXT

It is an objective of the Ballymun Masterplan 1998 to ‘create new connections between Ballymun and the wider community’. (Ballymun Masterplan 1998, P.2). The original road network divided Ballymun to the east and west and comprised a number of cul-de-sacs into the neighbourhoods. As a result the neighbourhoods were cut off and connectivity through the area was poor.

In an effort to increase permeability within the area and to enhance connections to the surrounding area the road network is being reviewed and modified. The subject proposal is shown in the Ballymun Masterplan 1998 and is identified as a priority project in the rationalisation of the Ballymun road network.

3.0 SITE LOCATION AND DESCRIPTION

The subject site is located at the junction of Balbutcher Lane South and Poppintree Park Lane West. The development of Hampton Woods, (Reg. Ref. 4387/03), lies to the north-west of the site, with the residential developments of Cranogue Court and Belclare Park to the south east.

The proposed development will replace the existing roundabout at Balbutcher Lane South and Poppintree Park Lane West with a signalised junction. The roads of Balbutcher Lane North and South, Poppintree Park Lane West and Hampton Woods access road will converge at this junction. A new connection will be created from Balbutcher Lane North and South and Poppintree Park Lane West, through Hampton Woods to the R104, St. Margaret’s Road. This connection was previously permitted in the parent planning permission for the Hampton Woods development, Reg. Ref. 4387/03. The current proposal represents an amendment to the junction design as previously permitted.

It is the policy of BRL to provide dedicated cycle facilities on all roads where physically possible. In accordance with this policy cycle tracks have been included in the subject proposal and have been designed to comply with City Council and national policy.

The cycle provision comprises on-street cycle tracks of 1.75m on either side of the carriageway, along with additional cycle tracks on the carriageway to facilitate cyclists wishing to turn right at the junction. Off-street cycle tracks through Hampton Woods were permitted under Reg. Ref. 4387/03 and have been significantly constructed to date. In order to minimise any conflicts between cyclists, pedestrians and vehicles, the proposed on-street cycle tracks will connect with the existing off-street cycle tracks within the Hampton Woods development.

The original planning permission for the Hampton Woods development (Reg. Ref. 4387/03) shows end-on car parking onto Balbutcher Lane South. It is acknowledged that the proposed Part 8 will require a redesign of the on-street parking as permitted under Reg. Ref. 4387/03, either by compliance or a future amendment to planning.

A portion of the land within the red line is outside of BRL ownership. A letter of consent from the land owner to proceed with the Part 8 is attached.

Project Description

Each element of the proposed development is described in detail in the following text;

Poppintree Park Lane West
This section of the proposal comprises the re-alignment of approximately 118m west from the new intersection of Balbutcher Lane North and South and Hampton Woods Access Road.

The re-aligned roadway generally consists of a 6.0m wide carriageway consisting of two 3.0m wide traffic lanes (two way), widening to a width of 10.75m to provide a 3.0m wide left turning lane at its intersection with Balbutcher Lane North and South and Hampton Woods Access Road, with a 1.75m cycle lane on both sides of carriageway, an additional 1.75m cycle lane on the carriageway, a 3.0m wide grass verge and a 2.0m wide footpath to the southern side of the carriageway only. There is no direct access to properties from this roadway.

Balbutcher Lane North
Proposed development on Balbutcher Lane North comprises the re-alignment of approximately 206m east from the new intersection of Poppintree Park Lane West, Balbutcher Lane South and Hampton Woods Access Road and finishes at the existing intersection with Balbutcher Drive.

The re-aligned roadway consists of a 6.0m wide carriageway consisting of two 3.0m wide traffic lanes (two way), with a 1.75m cycle lane on both sides of the carriageway. The re-aligned road consists of intersections with Balbutcher Lane South, Hampton Woods Access Road and an access road into the adjacent, permitted housing development of 4357/06 and 1142/07. The proposed road also provides for direct access to existing properties adjacent to the south side of the roadway. Access may also be required to service adjacent lands planned to be developed in the future. Any additional access roads from this roadway together with on-street parking and footpath layouts will be the subject of a future planning application or Part 8 process.

Balbutcher Lane South
This part of the proposal includes the re-alignment of approximately 133m south from the new intersection of Poppintree Park Lane West, Balbutcher Lane North and Hampton Woods Access Road and finishes at the existing intersection with Belcare Park.

The re-aligned roadway generally consists of a 6.5m wide carriageway comprising two 3.25m wide traffic lanes (two way), widening to a width of 12.75m to provide a 2.75m wide left turning lane at its intersection with Poppintree Park Lane West and Balbutcher Lane North with 1.75m cycle lanes, a 3.0m wide grass verge and a 2.0m wide footpath on either side of the carriageway. There is no direct access to properties from this roadway.

Hampton Woods Access Road
This element of the proposal involves the re-alignment of approximately 70m north from the new intersection of Poppintree Park Lane West, Balbutcher Lane North and South.

The re-aligned roadway consists of a 10.0m wide carriageway consisting of two 3.25m wide traffic lanes (two way) and a 3.5m wide Bus Lane; with a 2.0m wide grass verge, a 1.75m off-street cycle lane on both sides of carriageway and a 2.0m footpath on the western side of the carriageway only.

The proposed work will also include for the provision of public lighting, traffic signals, surface water drainage, ducting for underground services and road marking and signage as required. Any existing roadway pavement no longer required will be removed; backfilled where required and graded to match existing finishes and ground levels.

The road connection through Hampton Woods will meet with the realigned R104, St. Margaret’s Road and will provide increased permeability and connectivity throughout the Ballymun area. It is being implemented as part of the overall traffic management plan for Ballymun.

4.0 ENGINEERING SPECIFICATIONS

Roads standards

The proposed roads are classified as distributor/collector roads and shall be designed in accordance with the provisions of the NRA Guidelines, Traffic management Guidelines published by the Stationary Office and referenced documentation.

Traffic Management and Vulnerable Road Users

The management of all traffic movements, including vehicular, pedestrians, cyclists and disabled users will take cognisance of the Traffic Management Guidelines published by the Stationary Office.

Road Construction

The proposed road pavement will comprise of bituminous layers overlain on a granular subbase. The overall pavement thickness shall be based on the UK design procedure TRRL LR1132 as adopted.

Drainage

The surface water runoff will be collected by a series of road gullies (the positions of which will be determined during the detailed design stage) with the frequency of the gullies determined in accordance with the NRA Design Manual for Roads and Bridges. All of the roads included in this proposal are within catchments identified in the Ballymun Surface Water Masterplan. All drainage works and materials shall meet the requirements for taking in charge and be constructed in accordance with the Greater Dublin Region Code of Practice – Stormwater Management Policy.

Public Lighting

The proposed roads shall be illuminated in accordance with BS5489. All public lighting will meet the requirements of the Dublin City Council Public Lighting Division.

Line Marking and Signage

The roads shall be delineated with line marking and signage as appropriate, designed in accordance with the Department of Environment, Traffic Signs and Road marking Manual.

Existing Services

Where the proposal compromises clearance or cover to existing services, the requirements of statutory undertakers and other privately and publicly owned service providers will be accommodated during the detailed design stage.

5.0 TIME SCALES

It is proposed to begin the formal Part 8 procedure in October 2010.

Eoghan Madden
Senior Engineer
Dublin City Council Roads and Traffic Department
12th October 2010