N11 Junctions Upgrades

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Traffic Section

Level 4 

Harbour Square

Dun Laoghaire

Tel. no. 01 2047027

Email: traffic@dlrcoco.ie

To further develop and implement junction upgrading on the N11 Stillorgan Road as identified in the N11 Junctions Safety Review.

N31 Brewery Road Safety Improvement Scheme ( at junction St. Brigid's Church Road) 

Status - Construction

A detailed design was prepared in 2017 which included an advertised public consultation process. On completion of detailed design, the NTA requested that the scope of the proposed upgrade works exclude the proposed works to the N11 junction and to restrict the works to the Brewery Road / St Brigid’s Church Road junction due to potential scheme overlap with the proposed Bus Connects proposal for the N11. A revised design was completed in 2022 in accordance with the mandatory Design Manual for Urban Roads and Streets (DMURS 2019)

Junction tightening at St Brigid’s Church Road.

This will result in a narrower junction mouth by elimination of the existing splitter island, reduced lane width for the approach to the Stop line and tighter corner radii, all in compliance with DMURS. The resultant design will improve safety for drivers and vulnerable road users such as cyclists; there will be less exposure to conflict for on-road cyclists crossing of the mouth of the junction

New right turn lane from Brewery Road onto St Brigid’s Church Road.

This right turn lane will be protected by a splitter island which also serves as a pedestrian refuge. The splitter island also provide a traffic calming effect by reducing the width of the carriageway and encourages proper lane discipline for drivers.

The resultant design improves safety for drivers and vulnerable road users such as cyclists; there will be less exposure to conflict for on-road cyclists crossing of the mouth of the junction.

See attached ‘General Arrangement Drawing’ showing the extent of the works.

Works commenced on 20 March 2023 and are approximately 50% complete. The Contractor D.M Morris Ltd demobilised from site on 21 April 2023, to allow utility companies complete important gas, sewerage and water road crossings to the new development at the Grange. Once the utilities companies have ceased road excavations, works will continue and include a new road surface in the area. Works are expected to to be complete by mid-June 2023.

Stillorgan Road Cycle Scheme - Status - Completed

Construction works commenced in March 2020 on the upgrade of a cycle route on Stillorgan Road near University College Dublin. This scheme extends from the junction with The Rise to the pedestrian footbridge midway between the Fosters Avenue junction and Belfield flyover. Stillorgan Road is a key route in the city linking Bray and the City Centre with about 800 cyclists using the route each weekday in each direction.

The main works to be carried out, as part of the pedestrian and cycle scheme, include the following:

Enhanced facilities for cyclists on the city bound side of Stillorgan Road including the provision of 2.0m wide cycle tracks.
Reconfiguration of the junction of Stillorgan Road and the Rise.
Upgrade of the Stillorgan Road and Fosters Avenue junction to include a pedestrian/cycle ‘toucan’ crossing across Stillorgan Road and Fosters Avenue and the provision of enhanced facilities for pedestrians and cyclists. This will provide a crossing point for students attending the nearby schools.
Development of a new pedestrian and cycle entrance for UCD on Stillorgan Road at footbridge to improve accessibility to and from UCD. A two-way cycle route will be provided from the new entrance to the Fosters Avenue junction.
Relocation and modification of bus stops to provide enhanced safety for cyclists.
All associated utilities works, including the relocation of public lighting, traffic signals, trees, and third-party utilities.
An Cathaoirleach, Cllr Shay Brennan stated, “I welcome the commencement of the cycle route upgrade scheme on Stillorgan Road on this busy cycle corridor. The scheme will improve cycling options for the 20% of staff and students who currently cycle to and from UCD by bike each day and also for those cycling towards the city. This is one of a number of cycle schemes being progressed in the County, in conjunction with the National Transport Authority, and I look forward to seeing other cycling infrastructure projects commencing in 2020 in the County”

This scheme is fully funded by the National Transport Authority. Further cycle track improvements are also planned for Stillorgan Road as part of Bus Connects.

A Traffic Management Plan will be in place during the works that will consider all road users with traffic disruption kept to a minimum as is reasonably possible.  Updates will be provided throughout the works to inform the elected members, businesses, residents and the public regarding the scheme progress. The works are due to be completed in the 4th quarter of 2021.

Further information on the scheme and cycling in the Council can be obtained by e-mail at cycling@dlrcoco.ie.     

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