Newlands Cross Upgrade EIS - European Investment Bank

South Dublin County Council Newlands Cross Upgrade
Traffic Modelling: Working Paper No. 2
Figure 3: Do Something – Do Minimum Actual Flow Comparison (2009 AM Peak)
N4
DORR
N82
3.5.2 Newlands Cross AM Peak LAM: 2024 Forecast Flows
A similar comparison has been undertaken for the 2024 design year Do Minimum and Do
Something scenarios. The results (shown in Figure 4 below) indicate the following:
• There are significant increases in eastbound traffic along the N7. Again these are
partly caused by traffic that otherwise would be queuing along upstream sections of
the N7 at the end of the modelled period (peak spreading), although there seems to be
significant reassignment onto the N7 from competing routes such as the Nangor and
Ballymount Road, the M4 and the N81.
• The model also indicates an increase in westbound traffic along the N7 as a result of
the improvements, as the spare capacity at the Newlands Cross will be able to
accommodate increased demand in outbound (out of town) AM peak trips by 2024.
• North – south links in the area such as the R113, the ORR and the N82 will
experience relatively minor variations in traffic, with flow decreasing on links
belonging to alternative routes to the N7 such as the Belgard Road immediately to the
south of the Newlands Cross or the N82. There would not be major variations in
traffic along the M50 except for the section between the N7 and Ballymount
Interchanges.
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N7
N. Cross
N81
M50
Page 8 Arup Consulting Engineers
24 March 2006