Category Archives: Glenageary

Killiney Towers Roundabout

An independent Review of the operation and safety regarding the new layout of the Killiney Towers Roundabout has been completed by Clifton Scannell Emerson Associates, Consulting Engineers and was presented to Councillors in advance of the September Area Committee Meeting and was also presented at the October Area meeting.

Further to the comments and questions raised at that meeting by Councillors, a special working meeting of the Dún Laoghaire Area Committee was held on Thursday the 18th October to respond to the issues raised and to identify measures to resolve the issues.

The NTA were present at the meeting and their input provided further clarity on the objectives and overall design elements of this type of roundabout feature.

To assist in addressing the issues raised at the October Dún Laoghaire Area Committee meeting, Traffic Section prepared a Manager’s Response to all the main issues raised at the October meeting and this was circulated to all in attendance at the workshop meeting.

Arising from the working meeting, it was agreed that a number of proposed roundabout modifications/options should be worked up for further discussion to include the assessment of replacing the hedgehog kerbing; raising of the cycle track; and the possibility of applying raised platform features at the entry /exit points; examination to remove signage clutter noting that information signage may be more clearly/relayed better by means of road markings.

In addition, an information/educational type leaflet to be worked for circulation in the vicinity detailing the aims and objectives of the scheme, placing it in context, the concerns raised and how they are being addressed. The leaflet would also need to be focussed on the educational element and to be clear on the use of the facility by all road users.

Following on from the first meeting, various options have been worked on and these were presented to Councillors at another working group meeting on 22nd November 2012. These options have been outlined in the report presented to the December meeting under Headed Item No. 21. All details can be accessed on the DLR website.

The Traffic Section are now proceeding to detailed design, contractor procurement and construction of the selected option.

Pending the final revised roundabout layout being determined, the recommendations contained within the CSEA Consultants’ Operational Review Report have been implemented.”

Junctions at Killiney Road / Ballinclea Road & Killiney Road / Ballinclea Heights

These two junctions have been subject to on going monitoring since works were completed in February 2012.

In relation to the Killiney Road / Ballinclea Road junction, the works there have addressed the movement conflicts and lack of clarity in relation to priority which existed in the previous junction layout. It has also addressed the complaints regarding the safety issue of vehicles speeding from Ballinclea Road on the slip road beside the “triangle” and onto Killiney Road and not observing the STOP sign exiting on to Killiney Road in many cases. The new T junction layout has removed these vehicle turning conflicts, reduced speeds at the location and improved footpath provision at the junction.

Since the works were completed, anti skid surfacing has been applied on the approach from the Ballinclea Road side and it is proposed to erect a Chevron sign also on this approach to the junction. In addition, as part of the original overall scheme, a number of ramps were proposed on Killiney Road on the downhill approach to these junctions from Dalkey Avenue. Installing these ramps would contribute to reducing speeds on the approach to the junction and this proposal has recently been circulated to Councillors. The Traffic Section have also reviewed the location to assess the left turning manoeuvre from Ballinclea Road onto Killiney Road due to some concerns about vehicles encroaching across the centre line on to the opposing uphill lane. A design modification to soften the kerb line is being prepared to ascertain if the kerb line can be modified while still providing adequately for pedestrians. If this is feasible, the kerb line modification will be carried out.

Regarding Killiney Road/Ballinclea Heights junction, the original entrance at this junction was very wide with large turning radii and facilitated vehicles entering and exiting Ballinclea Heights at inappropriate speeds. The width of the crossing combined with the large entry and exit radii was also a safety concern for pedestrians at this junction.

The junction was modified to address these issues.

As part of the improvement of junctions in the County, tightening is applied to junctions that have historically wide entrance splays. This is to slow traffic on exit and entry onto the main route. It also provides the benefit that it reduces the walk length across the junctions for pedestrians. This has been generally applied to many junctions in the Dún Laoghaire area.

Traffic Section will continue to monitor traffic management at the Ballinclea Heights junction and the speed of traffic on the downhill approach on Killiney Road towards both junctions.”


The Traffic Section have carried out a review of this location to assess the left turning manoeuvre from Ballinclea Road on to Killiney Road further to some concerns about vehicles encroaching onto the opposing uphill lane.

A design modification to soften the kerb line is being prepared to ascertain if the kerb line can be modified whilst still providing adequately for pedestrians. If this is feasible the kerb line modification will be carried out.