Selby Paper Mill Development

Transcription

1 Selby Paper Mill Development Technical note October 2013 Prepared for: Holmar Property 110 ay View Road Northam Devon EX39 1J Prepared by: Steer Davies Gleave West Riding House 67 Albion Street Leeds LS1 5AA +44 (0)

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3 CONTENTS 1 SUPPLEMENTARY TRANSPORT ANALYSIS... 1 Introduction... 1 Revised Development Proposals... 1 Impact on Trip Generation... 2 Trip Distribution... 4 Conclusion... 4 FIGURES Figure 1.1 Revised Trip Generation AM peak Residential Trips... 5 Figure 1.2 Revised Trip Generation PM Peak Residential Trips... 6 Figure 1.3 Revised Trip Generation AM Peak Commercial Trips... 7 Figure 1.4 Revised Trip Generation PM Peak Commercial Trips... 8 Figure 1.5 Revised Turning Flow Forecasts AM Peak 2017 with Development 9 Figure 1.6 Revised Turning Flow Forecasts PM peak 2017 with Development TALES Table 1.1 Revisions to the Development Proposals... 1 Table 1.2 Car Parking Guidelines... 2 Table 1.3 Trip Generation Forecasts (85 th %ile Trips) Previous Development Proposals... 3 Table 1.4 Trip Generation Rates... 3 Table 1.5 Trip Generation Forecasts (85 th %ile Trips) Revised Development Proposals... 4 APPENDICES A REVISED LAYOUT Contents

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5 1 Supplementary Transport Analysis Introduction 1.1 This Technical Note has been prepared to consider the traffic implications of revisions to the development proposals at Selby Paper Mill. 1.2 The note should be considered alongside the following previously submitted transport reports: I, April 2013 I Supplementary Transport Assessment, May 2012 I Transport Assessment, July 2010 Revised Development Proposals 1.3 The change in development proposals is summarised in Table 1.1 below. In effect, there is a reduction in overall dwellings, and a revision to the use of the feature building. TALE 1.1 REVISIONS TO THE DEVELOPMENT PROPOSALS Land Use Allocations (April 2013) Revised Allocations 199 houses 250 houses 172 flats 42 flats Feature uilding - 30 apartments m 2 leisure - 600m 2 bar/restaurant Feature uilding - 10 apartments - 520m 2 office - 260m 2 retail - 260m 2 bar/restaurant 7 retail units 7 retail units 32 berth marina 32 berth marina 112m 2 leisure (at marina entrance) 1.4 A revised layout diagram is provided in Appendix A. 1.5 It is now proposed that the feature building is divided between retail and bar/restaurant uses on the ground floor, with offices occupying the first floor and apartments on the upper floors. 1.6 This represents the re-introduction of office use to the site, which has not been included since the July 2010 analysis. 1

6 Car Parking Provision 1.7 Table 1.2 provides a summary of the North Yorkshire County Council parking standards 1 applicable to this development and the maximum number of car parking spaces that should be provided. TALE 1.2 CAR PARKING GUIDELINES Land Use NYCC Parking Standard Maximum provision Residential - houses 250 units 3+ beds 2 spaces per dwelling 500 Residential flats 52 units 1&2 beds 1 space per dwelling 52 Offices 520m 2 1 space per 40m 2 GFA 13 Retail 1,100m 2 1 space per 40m 2 GFA 28 Restaurant 260m 2 1 space per 10m per 4 staff Leisure 112m 2 Not directly applicable 1 (assumed) Marina 32 berth n/a n/a Total Vehicular Parking (maximum) Parking for the houses will be provided within each plot, and underground parking will be provided for the 28 riverside apartments. Excluding these elements from the above provisions, leaves a maximum allocation of 94 spaces for all other site uses. Previous analysis has also assumed a further 24 spaces for marina uses. 1.9 A total of 100 parking spaces is allocated in the latest layout, with the majority located towards the centre of the site, close to the feature building, retail and marina. This is 18 spaces short of the maximum number of spaces indicated by the parking guidelines. As stated in earlier assessments, the retail element of the site will largely serve residents and commercial users of the site, particularly those using the marina. This will also apply to the restaurant use and, as such, the maximum number of parking spaces at each site will not be required The guidelines recommend additional residential parking for visitors, at a ratio of 1 space per 5 dwellings. For a total of 302 dwellings, this would equate to a further 60 car parking spaces. The internal road network will be greater than 5.5m in width and therefore, as suggested in the guidance, provision for visitors will be allocated within the main residential area of the site. Impact on Trip Generation 1.11 The previous from April 2013, outlined trip generation forecasts set out in Table 1.3 below. It has consistently been assumed that the retail element of the development will be ancillary to commercial uses on site, generating trips from within the development and pass-by trips already 1 North Yorkshire County Council, Transport Issues & Development A Guide 2

7 on the network. As such, the retail proposals will not generate any new trips to the site. TALE 1.3 TRIP GENERATION FORECASTS (85 TH %ILE TRIPS) PREVIOUS DEVELOPMENT PROPOSALS Land Use Unit AM Peak PM Peak In Out In Out Residential: Houses Number of dwellings Residential: Flats Number of dwellings Residential: Affordable Number of dwellings ar/restaurant 100m 2 GFA Leisure 100m 2 GFA Marina Number of berths Total Generated Trips Apart from the number of berths in the marina, each element of the site has been revised in the current proposals. To allow a comparison of the previous trip generation forecasts with those we might expect from the revised proposals, the trip rates in Table 1.54 have been used. For each land use, the trip generation rates have been taken from previously submitted transport reports for the site. TALE 1.4 TRIP GENERATION RATES Land Use Unit AM Peak PM Peak In Out In Out Residential: Houses Number of dwellings Residential: Flats Number of dwellings Office 100m 2 GFA ar/restaurant 100m 2 GFA Leisure 100m 2 GFA Marina Number of berths The resulting change in trip generation forecasts for the revised development are given in Table 1.5. Comparing these with the previous forecasts in Table 1.3, we see that trip generation forecasts are reduced under the revised proposals, particularly in the PM peak where total two-way trips are reduced by more than 100 trips. 3

8 TALE 1.5 TRIP GENERATION FORECASTS (85 TH %ILE TRIPS) REVISED DEVELOPMENT PROPOSALS Land Use Unit AM Peak PM Peak In Out In Out Residential: Houses Number of dwellings Residential: Flats Number of dwellings Office 100m 2 GFA ar/restaurant 100m 2 GFA Leisure 100m 2 GFA Marina Number of berths Total Generated Trips Total Residential Trips Total Commercial Trips Trip Distribution 1.14 Although the revised proposals re-introduce a small amount of office use to the site, there is no reason to change the trip distribution assumptions presented in previous transport assessments. Similarly there has been no update to base year flows or general traffic growth assumptions The following figures are a repeat of those presented in the April 2013 and show the distribution of trips on to the local network (Figures 1.1 to 1.4) and the impact on traffic forecasts in the 2017 assessment year. Where applicable, each figure indicates the difference to the April 2013 forecasts In each case, forecasts based on the current land use mix are lower than previously presented. Conclusion 1.17 The revised proposals for redevelopment of the Selby Paper Mill site will result in fewer trips than previously forecast, particularly in the PM peak hour where total two-way trips are predicted to reduce by more than 100 trips When added to forecasts of general traffic in 2017, flows are lower than those previously assessed and, subject to previously agreed mitigation, there are no additional highway reasons why planning consent for the proposed mixed use development at the former Paper Mill in Selby should be withheld. 4

9 FIGURE 1.1 REVISED TRIP GENERATION AM PEAK RESIDENTIAL TRIPS Right Turn RESIDENTIAL DISTRIUTION - OUT (FROM) Vehicles Out 117 Straight Ahead Left Turn A D A C C D A 64 C D C A RESIDENTIAL DISTRIUTION - IN Local Redistribution as assumed by Jacobs model A Vehicles In 88 D A C C D A C D C A 5

10 FIGURE 1.2 REVISED TRIP GENERATION PM PEAK RESIDENTIAL TRIPS Right Turn RESIDENTIAL DISTRIUTION - OUT (FROM) Vehicles Out 69 Straight Ahead Left Turn A D A C C D A C D C A RESIDENTIAL DISTRIUTION - IN Local Redistribution as assumed by Jacobs model A Vehicles In 156 D A C C D A C D C A 19 6

11 FIGURE 1.3 REVISED TRIP GENERATION AM PEAK COMMERCIAL TRIPS Right Turn COMMERCIAL DISTRIUTION - OUT (FROM) Vehicles Out 4 Straight Ahead Left Turn A D A C (-1) (-1) (-1) C D (-2) 3 (-2) 2 (-1) 0 A C D C A COMMERCIAL DISTRIUTION - IN (TO) A Vehicles In 19 D A C (+2) (+2) (+2) 8 9 (+2) 6 (+2) C D (+1) 6 1 A 8 (+2) 0 1 (+2) 2 C D C A 7

12 FIGURE 1.4 REVISED TRIP GENERATION PM PEAK COMMERCIAL TRIPS Right Turn COMMERCIAL DISTRIUTION - OUT (FROM) Vehicles Out 30 Straight Ahead Left Turn A D A C (-1) (-1) (-5) (-5) (-4) C D 9 (-4) 9 1 (-1) 3 4 (-2) 13 (-6) (-7) A C D C A COMMERCIAL DISTRIUTION - IN (TO) A Vehicles In 23 D A C (-26) (-29) (-7) (-19) 10 5 (-19) 10 C D (-10) 0 7 (-1) (-13) 4 1 A (-7) (-3) (-1) (-1) (-6) C D C A 8

13 FIGURE 1.5 REVISED TURNING FLOW FORECASTS AM PEAK 2017 WITH DEVELOPMENT ase Dev Traffic + Resi Only Trips: AM Peak Right Turn Straight Ahead Left Turn ase Dev Traffic + Resi Trips

14 FIGURE 1.6 REVISED TURNING FLOW FORECASTS PM PEAK 2017 WITH DEVELOPMENT Right Turn Straight Ahead Left Turn ase Dev Traffic + Resi Trips

15 APPENDIX A REVISED LAYOUT Appendix A

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19 CONTROL SHEET Project/Proposal Name Document Title Client Contract/Project No. Selby Paper Mill Development Click here to enter text. SDG Project/Proposal No ISSUE HISTORY Issue No. Date Details /10/13 16/10/13 1 st Draft Final REVIEW Originator Ed ryan Other Contributors Review by: Print Steve Oliver Sign DISTRIUTION Client: Holmar Property Steer Davies Gleave: P:\PROJECTS\221400s\221419\03\Work\October13\Supp TS Oct13 v02.docx Control Sheet