Newlands Cross Upgrade EIS - European Investment Bank

More documents

Recommendations

Info

South Dublin County Council N7 Newlands Cross Upgrade Environmental Impact Statement 5.4 Other Committed Transport Schemes Arup Consulting Engineers In order to assess the impact of the scheme, it is necessary to include all ‘other’ committed road proposals. Local committed schemes included in the model are the M50 Upgrade (N4 to N7 only) and Phases 1, 2 and 3 of the Dublin Outer Ring Road (DORR). Regarding other transport commitments, the DTO’s assumptions on road network and public transport improvements as in their AM Peak Strategic Model have been adopted. These reflect improvements associated with the DTO’s Platform for Change and the Government’s Transport 21 Strategy. 5.5 Operation of Proposed Newlands Cross Junction 5.5.1 Proposed road layout The scheme developed for Newlands Cross is based on a grade separated interchange – with a free flow N7 passing over an at-grade R113 / N7 slip roads junction. The R113 / N7 junction is to be signal controlled. The at-grade layout consists of two adjacent signal junctions, which will effectively operate as a single entity to ensure co-ordination of signal timings and hence movements through the junction. A signal control timings ‘plan’ has been devised for the proposed Newlands Cross junction. The junction layout and signal plan have been subject to an iterative design process in order to identify a robust scheme. In particular, the traffic signal operation has been designed to limit any queuing on slip roads or on the R113 link which crosses the N7 mainline. The proposed signal control operation is indicated in Figure 5.7. 5.5.2 Proposed speed limits The speed limit on N7 Naas Road is to be 80 kph on both the western and eastern side of Newlands Cross. 5.5.3 Bus Routes and Facilities Bus Routes: The existing bus routes provided by Dublin Bus on Naas Road, Belgard Road and Fonthill Road, and along the N7 Naas Road by Bus Eireann and private operators will continue to be able to travel through the revised junction layout. Proposed Bus Lanes: There will be bus lanes on approaches and exits from Newlands Cross junction, in locations similar to the present provision (as shown in Figure 5.8): • A bus lane will run along the nearside of N7 Naas Road East westbound off-slip road, and across the Newlands Cross junction onto the beginning of the westbound on-slip, where it will merge with general traffic. • A service road which will be relatively clear of general traffic will be provided eastbound along N7 Naas Road East, with a cycle track also provided within the roadspace. The service lane at this location is also able to be used by other traffic turning in (left-in) and out (left-out) of entrances on Naas Road. • A bus lane will run along Naas Road West (eastbound) prior to reaching the junction, and will continue onto the eastbound off-slip road at Boot Road. The bus lane will terminate on the slip road as it approaches the junction with Fonthill Road / Belgard Road. although the bus lane is intermittent to allow for movements in and out of junctions (eg. Boot Road). • A bus lane will remain in place northbound on Belgard Road, continuing all the way across the Newlands cross junction to Fonthill Road – where the bus lane merges with general traffic lanes (northbound). December 2007 Page 85
South Dublin County Council N7 Newlands Cross Upgrade Environmental Impact Statement Arup Consulting Engineers The bus lanes will provide significant priority for bus movements, and the reduction in queues on the N7 and the R113 junction approaches will enable buses to travel through Newlands Cross with less delay than for the Do-Minimum scenario. Proposed Bus Stop Locations: Bus stop locations are shown in Figure 5.8; these will be in similar locations to the present, with no reduction in the quality of facilities for bus users. 5.5.4 Pedestrian and cyclist facilities Proposed Cycle Track: Cycle facilities will be provided as follows (and as shown in Figure 5.9): • A cycle track will be provided both sides of N7 Naas Road • A cycle track will be provided on Belgard road (southbound). Proposed Pedestrian Facilities: Signal controlled pedestrian crossings are to be provided across all four approaches to the Newlands Cross junction – on Naas Road East, Naas Road West, Fonthill Road and Belgard Road (see Figure 5.10). The junction will have pedestrian footways on all 4 road approaches, with footways on both sides of each road, and with pedestrian footways on both sides of the R113. Removal of the N7 through-traffic will provide an opportunity for increased frequency of pedestrian crossing signal operation – thus improving conditions for pedestrians. The reduced traffic flow will also reduce the ‘exposure’ of pedestrians to high traffic volumes – and hence contribute towards improved road safety. 5.6 Area-wide Modelling In order to quantify both flow levels and delays at the existing junction and for the improved junction it is necessary to provide a robust forecast of future flows at the junction. Within the Dublin area, best practice dictates that future transport scenarios are modeled using data obtained from the Dublin Transportation Office (DTO) Transportation Model which, historically, has been used successfully to evaluate major transport infrastructure schemes in Dublin. The DTO model incorporates all of the transport proposals, which comprise the integrated transportation strategy for the Dublin area. In demographic terms, the transportation model forecasts incorporate population and household projections based on the development plans in the Greater Dublin Area, as well as estimates of population growth for the region from the Strategic Planning Guidelines. Projections of employment were based on land zoned for future development and other related information supplied by the local authorities and the DTO. The data on traffic movements and network changes was extracted from the DTO model, and a local traffic-based model produced specifically for the Newlands Cross analysis. The modelling methodology agreed with DTO was as follows: • Based on preliminary SATURN assessment results, the simulation network agreed with DTO spans between the N4 and the N81 from north to south and between the R112 and the County Kildare boundary from east to west. • A validated Base Year 2005 AM Peak SATURN Local Area Model was produced, based on a cordon model from the DTO’s Dublin AM Peak Strategic Model (produced and validated in January 2006). • For future years, the DTO model included all elements of the existing Dublin transportation network and future transport infrastructure commitments as set out in committed strategy documents (Transport 21). The data extracted from the DTO model was the basis for an AM peak ‘Local Area Model’ produced to analyse the Newlands Cross scheme. December 2007 Page 86
Page 1 and 2:
Kildare County Council South Dublin
Page 4:
South Dublin County Council N7 Newl
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72: South Dublin County Council N7 Newl
Page 121: South Dublin County Council N7 Newl
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Page 249 and 250:
Page 251 and 252:
Page 253 and 254:
Page 255 and 256:
Page 257 and 258:
Page 259 and 260:
Page 261 and 262:
Page 263 and 264:
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
Page 271 and 272:
Page 273 and 274:
Page 275 and 276:
Page 277 and 278:
Page 279 and 280:
Page 281 and 282:
Page 283 and 284:
Page 285 and 286:
Page 288:
PLATES
Page 292:
APPENDIX A5 - TRAFFIC AND TRANSPORT
Page 295 and 296:
South Dublin County Council Newland
Page 297 and 298:
Page 299 and 300:
Page 301 and 302:
Page 304 and 305:
Page 306 and 307:
Page 308 and 309:
Page 310 and 311:
0 kilometres 2 Scale N.T.S Ordnance
Page 312 and 313:
Page 314 and 315:
Page 316 and 317:
Page 318 and 319:
Page 320 and 321:
Page 322:
APPENDIX A8 - NOISE AND VIBRATION
Page 326:
APPENDIX A9 - AIR QUALITY
Page 329 and 330:
Page 331 and 332:
Page 334:
APPENDIX A11 - ECOLOGY
Page 337 and 338:
Page 340:
APPENDIX A12 - ARCHAEOLOGY, ARCHITE
Page 343 and 344:
Page 345 and 346:
Page 347 and 348:
Page 349 and 350:
Page 351 and 352:
Page 353 and 354:
Page 355 and 356:
Page 357 and 358:
Page 360 and 361:
Page 362 and 363:
Page 364:
show all

Newlands Cross Upgrade EIS - European Investment Bank

Create successful ePaper yourself

Delete template?

Save as template?