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Roads Input Data Dr David Connolly Transport Model for Scotland (TMfS) •Multi-modal transport model covering most of mainland Scotland •2005 Base Year and future-year forecasts •Calibrated, validated & audited •Currently excludes Argyll, Highland, Moray & the Islands © Crown copyright. All rights reserved Scottish Executive 100020540 2007 TMfS Network Detail and Flow Estimates © Crown copyright. All rights reserved Scottish Executive 100020540 2007 © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Traffic Data for Noise Mapping •TMfS provides week-day AM Peak, Inter-Peak & PM Peak traffic estimates for most of the relevant roads in the required areas – – – – Consistent estimates of traffic flow for every link in its network Average speeds and %HGVs (by time period) for each link Data easily transferred on to GIS packages Ability to forecast future traffic conditions and the impacts of any trafficrelated interventions – Minor roads and low-flow residential streets not included in TMfS (so flows on these estimated separately) •Annualisation factors are used to convert AM Peak, InterPeak & PM Peak traffic estimates to 18-hr flows. Annualisation Factors Mode AM hour to AM period PM hour to PM period IP Hour to Rest of 18-hr Car & LGV 2.2 2.6 8.4 HGV 3.0 3.2 7.4 END Traffic Data Scottish Roads Transport Database and TMfS 79.0 y = 0.9795x + 1.0729 78.0 77.0 76.0 TMfS 75.0 74.0 73.0 72.0 71.0 70.0 69.0 68.0 70.0 71.0 72.0 73.0 74.0 SRTDb 75.0 76.0 77.0 78.0 Geo-rectification of TMfS •We developed a method to match the model network “stick” links to OS Master Map ITN features. •This ensured that the traffic information is positioned consistently with other noise mapping data TMfS ITN © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Geo-rectification of TMfS •The geo-rectification method combines manual adjustments and automated processes to ensure a good quality correspondence. The key processes are: – – – – – Node Matching Link Matching Dual Carriageway processing Roundabout processing Complex junction processing Agglomerations and Major Routes the Edinburgh agglomeration; the Glasgow agglomeration; the entire Scottish motorway network (M8, M9, M74, M77, M80, M90 and M876); the A1 from the Edinburgh agglomeration boundary to Haddington; the A9 (Stirling to Perth); the A77 from the M77 to Ayr; the A78 from the A77 to Greenock; the A82 from the M8 to Dumbarton; the A90 from Perth to Aberdeen (via Dundee); the A92 (Halbeath to Glenrothes); and the A96 (Aberdeen to Inverurie). NB The high-flow section of the A737 between Johnstone and Glasgow will be covered by the Glasgow agglomeration mapping © Crown copyright. All rights reserved Scottish Executive 100020540 2007 © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Major Roads END Major Road Sections “red” sections show flows > 16000 AAWDT based on traffic counts Most covered by TMfS apart from a small number of short “outlier” sections © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Residential Streets LOCATION Edinburgh – typical traffic flows on streets not covered by TMfS © Crown copyright. All rights reserved Scottish Executive 100020540 2007 18 HR Flow Cambridge St 1,246 Grindlay St 1,208 Cornwall St 1,243 Merchiston Ave 3,550 Montpellier Park 1,384 Aboretum Place 9,992 Brunswick Street 3,021 Carlton Brae Terrace 3,354 Carrington Road 10,58 8 Warriston Road 3,811 Whitehouse Loan 9,091 South Gyle Avenue* 6,541 Abbey Lane 3,983 Eglinton Crescent 2,677 Glencairn Crescent 1,975 Coates Gardens 2,301 Rosebury Crescent 2,656 Grosvenor Crescent 1,253 Greenbank Lane 4,394 Cammo Gardens Cammo Gardens 1,814 Bath Street 3,231 Primary Road Glasgow – typical traffic flows on streets not covered by TMfS © Crown copyright. All rights reserved Scottish Executive 100020540 2007 18 HR Flow Bunhouse Road 2338 Blantyre Street 1989 Benalder Street 8884 Old Dumbarton Road 8448 Dalnair Street and 2618 Yorkhill Street 7156 Gilbert Street 1561 Haugh Road 4530 Watson Street 1151 St Andrews Street 1230 Turnbull Street 5498 Midland Street 1060 Oak Street 2260 McAlpine Street 1296 Washington Street 1626 Corruna Street 2587 Houldsworth Street 3568 Argyle Street 1622 Minerva Street 1916 St Vincent Crescent 3565 Congress Way 3195 Elliot Street 3381 Elderslie Street 5713 Congress Road 4415 Kelvingrove Street 2392 Kent Road 1611 William Street 1197 Hydepark Street 4561 Lancefield Street 1973 West Greenhill Place 2672 Outliers (ie flows >16,000 AAWDT not covered by TMfS) Outliers Elgin 2 Traffic Counters Inverness 12 Traffic Counters Fort William 1 Traffic Counter Oban 1 Traffic Counter Dumfries 3 Traffic Counters © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Fort William © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Fort William LOCATION ROUTES EQ Fort William A82_411 18hr AAWDT 18,258 © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Oban © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Oban © Crown copyright. All rights reserved Scottish Executive 100020540 2007 LOCATION ROUTES EQ Oban A85_207 18hr AAWDT 16,612 Elgin © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Elgin Location Route 18 Hr AAWDT Elgin A96 18,579 Elgin A96 17,381 © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Dumfries © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Dumfries LOCATION ROUTESE Q Dumfries A75_110 22,397 Dumfries A701_101 22,278 Dumfries A76 25,389 18hr AAWDT © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Inverness © Crown copyright. All rights reserved Scottish Executive 100020540 2007 Inverness © Crown copyright. All rights reserved Scottish Executive 100020540 2007 LOCATION ROUTES 18hr AAWDT Dumfries A75_110 22,397 Inverness A9_529 37,461 Inverness A9_530 27,981 Inverness A9_532 22,557 Inverness A82_422 24,180 Inverness A82_424 31,239 Inverness A82_425 32,464 Inverness A96_160 26,784 Inverness A96_159 16,016 Inverness A96_158 16,755 Inverness A96_161 36,156 Inverness A9_528 25,484 Inverness A9_530 28,835 Other Road Attributes •In addition to integrating the traffic model data, the END network has to manage other attributes, eg: – pavement type – road gradient – location of bridges and culverts •These attributes lie along a partial edge or may cross several edges without changing characteristic. •In these cases we will employ “dynamic segmentation”, which is a GIS technique to reference attributes to lengths of road. •This method is already used within the SERIS database. Roads Geodatabase • Spatial features – MasterMap base map including topographic layers like vegetation – MasterMap ITN road links and nodes – TMfS network georectified to ITN – SERIS network georectified to ITN – road structures • © Crown copyright. All rights reserved Scottish Executive 100020540 2007 • Attributes – vehicle flows (LGV and HGV) – vehicle speed – surface type – road width – walls, underbridges & overbridges – noise barriers Boundaries – Urban agglomerations – 2 km buffer around roads The End