Newlands Cross Upgrade EIS - European Investment Bank
Newlands Cross Upgrade EIS - European Investment Bank
Newlands Cross Upgrade EIS - European Investment Bank
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South Dublin County Council N7 <strong>Newlands</strong> <strong>Cross</strong> <strong>Upgrade</strong><br />
Environmental Impact Statement<br />
Arup Consulting Engineers<br />
Table 3.10: Emission Factors (g/veh-km) used for Breeze ROADS Assessment<br />
Road Section NOX 1 PM10<br />
R113 Fonthill Road eastbound on slip 0.5256 0.0182<br />
R113 Fonthill Road south and westbound 0.9751 0.034<br />
R113 Fonthill Road northbound 0.509 0.0136<br />
R113 Fonthill Road southbound 0.8243 0.0304<br />
R113 Fonthill Road westbound 1.3018 0.0418<br />
N7 eastbound of junction after merge with eastbound on slip 0.5436 0.0144<br />
N7 westbound east of junction 1.0253 0.0352<br />
N7 southbound off-slip diverge 0.7004 0.0216<br />
N7 east of junction westbound 1.7457 0.0525<br />
N7 east of junction turning north 0.8411 0.0308<br />
R113 Belgard Road westbound on-slip 0.7556 0.0227<br />
R113 Belgard Road northbound 0.8662 0.0314<br />
R113 Belgard Road turning east 1.0337 0.0354<br />
R113 Belgard Road southbound 0.5483 0.0142<br />
R113 Belgard road northbound before west and eastbound turns 0.5516 0.0141<br />
N7 westbound west of junction after joining westbound slip 0.677 0.0163<br />
N7 eastbound off-slip 0.8016 0.0236<br />
N7 west of junction eastbound 1.5028 0.0467<br />
N7 west of junction southbound 1.1594 0.0384<br />
R113 Belgard Road northbound and N7 east of junction northbound 0.8578 0.0312<br />
R113 Belgard Road eastbound and N7 west of junction eastbound 1.151 0.0382<br />
N7 west of junction southbound and R113 Fonthill Road southbound 0.9667 0.0338<br />
N7 east of junction westbound and R113 Fonthill Road westbound 1.419 0.0447<br />
N7 eastbound west of junction (at grade) 0.7489 0.0171<br />
N7 eastbound west of junction (rising ramp) 0.8918 0.0244<br />
N7 eastbound above the junction (bridge) 0.8918 0.0244<br />
N7 eastbound east of junction (falling ramp) 0.8918 0.0244<br />
N7 eastbound east of junction (at grade) 0.9704 0.0263<br />
N7 westbound west of junction (at grade) 0.8261 0.0182<br />
N7 westbound west of junction (falling ramp) 1.032 0.029<br />
N7 westbound above the junction (bridge) 1.032 0.029<br />
N7 westbound east of junction (rising ramp) 1.032 0.029<br />
N7 westbound east of junction (at grade)<br />
1<br />
All NOx emissions assumed to be 100% NO2<br />
0.7962 0.0178<br />
A full year’s data from the Met Éireann weather station at Dublin Airport was used in<br />
modelling the interchange 12 .<br />
3.10.5.3 Index of Overall Change in Exposure<br />
A calculation of the index of overall change in exposure was carried out along the route<br />
corridor using the emission rates which are input into Breeze ROADS. The junction and link<br />
roads for the do-minimum (DM) scenario (without the proposed development) and the dosomething<br />
(DS) scenario (with the underpass or the overpass) were assessed. Emission rates<br />
are based on traffic composition, flow and speed.<br />
The NRA guidelines state that “a significant change can be considered to be an increase or<br />
decrease in traffic emissions of 10% or more”. Therefore, only the road sections which<br />
experience an increase or decrease of 10% in traffic emissions of NOX and PM10 were<br />
assessed (refer to Table 3.11). The NOX and PM10 emission factors for each of these links was<br />
December 2007 Page 39
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