Newlands Cross Upgrade EIS - European Investment Bank

South Dublin County Council N7 Newlands Cross Upgrade
Environmental Impact Statement
Arup Consulting Engineers
Table 5.4: Traffic Capacity Results: 2010 Opening Year Peak Hours: Do-Something
Junction Approach Link
Demand
Flow
(pcu)
Capacity
(pcu)
Deg Sat
(%)
Av.
Delay
Per Veh
(s/pcu)
Mean
Max
Queue
(pcu)
Fonthill Rd South Ahead 751 776 96.8 81.1 27.4
Fonthill Rd South Left 486 515 94.3 76.7 17.8
Naas Rd Westbound Left Ahead Right 637 1214 52.5 33.8 14.4
Belgard Road Ahead 266 357 74.4 59.1 7.8
AM Belgard Road Ahead 178 357 49.8 49.1 4.7
peak Belgard Road Left 142 1552 9.1 2.5 0.6
Naas Rd Eastbound Right 845 857 98.6 75.1 32.4
Naas Rd Eastbound Left Ahead 232 694 33.4 23.8 4.4
Belgard Road Right (central link) 178 454 39.2 51.1 2.9
Belgard Road Ahead (central link) 341 1479 23.1 33.8 5.0
Fonthill Rd South Ahead (central link) 1535 2233 68.7 8.5 15.2
Fonthill Rd South Right (central link) 61 1101 5.5 1.7 0.0
Fonthill Rd South Ahead 398 711 56.0 43.0 9.9
Fonthill Rd South Left 75 582 12.9 27.2 1.4
Naas Rd Westbound Left Ahead Right 764 1319 57.9 32.2 17.0
Belgard Road Ahead 690 1161 59.4 31.3 15.5
PM Belgard Road Ahead 462 800 57.7 31.0 9.9
peak Belgard Road Left 845 1552 54.4 4.6 6.5
Naas Rd Eastbound Right 142 494 28.7 38.7 3.3
Naas Rd Eastbound Left Ahead 161 291 55.4 48.9 4.3
Belgard Road Right (central link) 462 1197 38.6 6.8 3.5
Belgard Road Ahead (central link) 1176 2450 48.0 3.0 1.8
Fonthill Rd South Ahead (central link) 408 1295 31.5 13.6 2.3
Fonthill Rd South Right (central link) 132 638 20.7 3.6 0.1
Note: pcu=passenger car unit; car=1 pcu; HGV=3 pcu
Degree of Saturation=flow/capacity
December 2007 Page 91