Integrated Transportation Assessment
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INTEGRATED TRANSPORTATION ASSESSMENT Contact Energy Te Mihi Geothermal Power Station Hamilton Office | 58 Church Road | PO Box 171, Hamilton 3240| Tel (07) 849 9921 | [email protected] | www.ckl.co.nz Contact Energy | Integrated Transportation Assessment| Te Mihi Geothermal Power Station DOCUMENT CONTROL CKL REFERENCE B20035 DOCUMENT STATUS Approved REVISION NO. 1 DATE 12 October 2020 FILE NAME B20035-Tr- -Ita Matthew Sleet Transportation Engineer AUTHOR Judith Makinson Transportation Engineering Manager AUTHORISED BY OFFICE OF ORIGIN Hamilton CKL | Hamilton Office | B20035 i Contact Energy | Integrated Transportation Assessment| Te Mihi Geothermal Power Station TABLE OF CONTENTS 1 Executive Summary ......................................................................................................................... 1 2 Introduction .................................................................................................................................... 3 3 Site Location .................................................................................................................................... 3 4 Existing Environment ...................................................................................................................... 4 4.1 Road Network ......................................................................................................................... 4 4.2 Traffic Volumes ..................................................................................................................... 10 4.3 Road Safety ........................................................................................................................... 12 5 Sustainable Travel Modes ............................................................................................................. 14 5.1 Walking and Cycling .............................................................................................................. 14 5.2 Public Transport .................................................................................................................... 14 6 Committed Environmental Changes ............................................................................................. 15 7 Proposal ........................................................................................................................................ 15 7.1 Development ......................................................................................................................... 15 7.2 Traffic Generation ................................................................................................................. 16 7.3 Access .................................................................................................................................... 18 7.4 Parking .................................................................................................................................. 22 8 Assessment of Effects ................................................................................................................... 22 8.1 Traffic Effects ........................................................................................................................ 22 8.2 Holiday Peaks ........................................................................................................................ 25 8.3 Access Effects ........................................................................................................................ 25 8.4 Parking Effects ....................................................................................................................... 28 8.5 Road Safety Effects ............................................................................................................... 29 9 Construction Traffic Management ................................................................................................ 30 10 Consultation .............................................................................................................................. 31 11 District Plan Compliance ........................................................................................................... 31 12 Conclusions ............................................................................................................................... 35 CKL | Hamilton Office | B20035 ii Contact Energy | Integrated Transportation Assessment| Te Mihi Geothermal Power Station TABLE OF TABLES Table 1: Trip Generation Rates Comparison Between Stage 1 and Stage 2 ......................................... 17 Table 2: SH1/Oruanui Intersection AM Traffic Volumes Comparison .................................................. 22 Table 3: SH1/Oruanui Intersection PM Traffic Volumes Comparison .................................................. 22 Table 4: SH1/Oruanui Intersection AM Traffic Volumes Comparison .................................................. 23 Table 5: SH1/Oruanui Intersection PM Traffic Volumes Comparison .................................................. 23 Table 6: SH1/SH5 Intersection AM Traffic Volumes Comparison ......................................................... 23 Table 7: SH1/SH5 Intersection PM Traffic Volumes Comparison ......................................................... 23 Table 8: Wairakei Drive/Poihipi Road Intersection AM Traffic Volumes Comparison.......................... 23 Table 9: Wairakei Drive/Poihipi Road Intersection PM Traffic Volumes Comparison .......................... 24 Table 10: District Plan Compliance Summary ....................................................................................... 31 TABLE OF FIGURES Figure 1: Aerial Site Photograph (Source: GoogleMaps) ........................................................................ 4 Figure 2: Upgraded Site Entrance to Te Mihi Power Station .................................................................. 5 Figure 3: Oruanui Road and SH1 Intersection (looking North) ............................................................... 6 Figure 4: Oruanui Road and Link Road Intersection ............................................................................... 7 Figure 5: Link Road and SH1 Intersection ............................................................................................... 8 Figure 6: Poihipi Road and Oruanui Road Intersection (Looking South along Poihipi Road) ................. 9 Figure 7: Intersection of Poihipi Road with Wairakei Drive .................................................................. 10 Figure 8: Stage 2 Construction Areas .................................................................................................... 16 Figure 9: North via the SH1 & Oruanui Road Intersection .................................................................... 19 Figure 10: East via the SH5 & SH1 Intersection .................................................................................... 20 CKL | Hamilton Office | B20035 iii Contact Energy | Integrated Transportation Assessment| Te Mihi Geothermal Power Station Figure 11: South via the Poihipi Road & Wairakei Drive Intersection .................................................. 20 Figure 12: South via the SH1 & Link Road Intersection ........................................................................ 21 Figure 13: Site Access Intersection ....................................................................................................... 26 Figure 14: Sight Distance Looking Left (Looking South) ........................................................................ 27 Figure 15: Sight Distance Looking Right (Looking North) ..................................................................... 27 CKL | Hamilton Office | B20035 iv Contact Energy | Integrated Transportation Assessment| Te Mihi Geothermal Power Station 1 Executive Summary 1.1.1 This Integrated Transportation Assessment (ITA) has been prepared to assess the effects of traffic associated with the second stage of construction of the previously consented Te Mihi Geothermal Power Station (‘the site’). 1.1.2 The site is located approximately 9km north-west of Taupo, in a largely rural environment. The site is located on the eastern side of Oruanui Road, approximately 650m north of the intersection of Poihipi Road with Oruanui Rd. 1.1.3 This assessment is focussed on the potential construction traffic effects arising from the use of this external site access to Oruanui Road, and the wider locality, where Oruanui Road intersects with other roads, which will become common routes to the site entrance (notably Poihipi Road, State Highway 1, Link Road and Wairakei Drive). 1.1.4 The subject site is located within Taupo District Council’s jurisdiction, and has been assessed against the relevant transportation criteria of the Taupo District Plan. 1.1.5 Stage 1 of the power station has been consented and approved. The construction traffic assessed in this report is for Stage 2 of the power station. Two power generation options are being considered for Stage 2 by Contact Energy. These are either the use of a steam turbine or a binary plant. 1.1.6 The overall length of construction is anticipated to be 27 months, operating typically six days a week, ten hours a day. The peak period of construction is expected to be during the civil and structural installation phase. For Stage 1, this took approximately 17 months throughout the middle of the construction period. The civil and structural installation phase is expected