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KENDAL POWER STATION ASH DISPOSAL SITE PROJECT Traffic and Transportation Assessment 25 July 2013 Proj. No. 022210 www.goba.co.za Kendal Power Plant Ash Disposal Facilit TABLE OF CONTENTS 1. INTRODUCTION ...................................................................................................................... 1 1.1 Background ........................................................................................................................... 1 1.2 Problem Statement ................................................................................................................ 1 1.3 Warrants and Extent of study ................................................................................................ 1 1.4 Study Area ............................................................................................................................ 2 1.5 Methodology .......................................................................................................................... 2 2. STATUS QUO CONDITIONS ................................................................................................... 4 2.1 Roads and Traffic Volumes in the Surrounding Area ............................................................. 4 2.2 Description of Road Infrastructure ......................................................................................... 4 2.3 Location of Employee Residences ......................................................................................... 5 2.4 Other Transport Infrastructure ............................................................................................... 5 3. IMPACT RATING METHODOLOGY ......................................................................................... 6 3.1 Rating Criteria ....................................................................................................................... 6 3.1.1 Significance ............................................................................................................... 6 3.1.2 Spatial Scale ............................................................................................................. 7 3.1.3 Duration Scale ........................................................................................................... 7 3.1.4 Degree of Probability ................................................................................................. 8 3.1.5 Degree of Certainty ................................................................................................... 8 3.2 Quantitative Description of Impacts ....................................................................................... 9 3.3 Cumulative Impact ................................................................................................................. 9 4. ASH HANDLING ..................................................................................................................... 10 5. ACCESS ................................................................................................................................. 10 6. RELEVANT PEAK HOURS ..................................................................................................... 11 7. TRAFFIC AND TRANSPORT IMPACTS ................................................................................. 11 7.1 Construction Phase Traffic .................................................................................................. 11 7.2 Transport of Components during Construction .................................................................... 13 7.3 Abnormal Load Permit Application ....................................................................................... 13 7.4 Post Construction Traffic ..................................................................................................... 14 8. TRIP DISTRIBUTION.............................................................................................................. 15 9. LATENT DEMAND .................................................................................................................. 15 10. ASSESSMENT YEARS .......................................................................................................... 16 \\roadsrv1\roads_data$\022210.R Kendal Ash Plant 1\01 Design Records and Calculation Files\04 Road i Calculations\Traffic\Report\Traffic Impact Study R2.doc Kendal Power Plant Ash Disposal Facility 10.1 Assessment Scenarios ........................................................................................................ 16 11. INTERSECTION CAPACITY EVALUATION ........................................................................... 17 11.1 SCENARIO 1 – 2012/13 Traffic Demand ............................................................................. 18 11.2 SCENARIO 2 - 2014 Background Traffic Demand + Development (Construction Phase Traffic) ........................................................................................................................................... 18 11.3 SCENARIO 3 - 2019 Background Traffic Demand + Development (Post Construction Phase Traffic) ........................................................................................................................................... 19 12. RECOMMENDED UPGRADES .............................................................................................. 20 13. CONCLUSIONS ...................................................................................................................... 20 LIST OF FIGURES Figure 1-1 : Local Locality Plan ....................................................................................................... 2 Figure 5-1 : Access Configuration ................................................................................................. 10 LIST OF TABLES Table 10-1 : Assessment Scenarios .............................................................................................. 16 Table 11-1 : Level of Service Criteria (HCM) ................................................................................. 17 ANNEXURES: Annexure A List Of Figures Annexure B Table 5-6 – Capacity Analysis Results Annexure C Table 3-1 Impact Rating Table Annexure D Future Traffic Pojection Report, Mpumalanga Province, November 2010 by ITS Pty (Ltd) \\roadsrv1\roads_data$\022210.R Kendal Ash Plant 1\01 Design Records and Calculation Files\04 Road ii Calculations\Traffic\Report\Traffic Impact Study R2.doc Kendal Power Plant Ash Disposal Facility 1. INTRODUCTION 1.1 Background Goba Pty Ltd was appointed by Zitholele Consulting on behalf of Eskom to undertake a traffic/transportation impact study as part of the Environmental Impact Assessment for the proposed Ash Disposal facility development at the Kendal Power Station. Kendal Power Station is located near Emalahleni in the Mpumalanga Province. A regional locality plan is shown in Figure 1 in Annexure A: Kendal Power Station is a coal fired power station located south west of the Ogies Town. It has an indirect dry-cooling system that uses a cooling tower and water. The power station has a life span of 60 years beginning in 1993 when the first coal was fired. Kendal has six 686 megawatt (MW) units that generates 4 116 MW. 1.2 Problem Statement The current ash disposal facility of the Kendal Power Station is running out of space due to the poor quality coal accessible for combustion, which produces more ash than was planned. In addition the life span of Kendal has also been extended to 2053, which would render the available ash disposal space inadequate to accommodate continuation of disposal. Eskom has two options in solving this problem: o Continue disposing ash onto the existing facility but extend the footprint of the facility or o Seek an alternative disposal facility site with a lifespan of 30 years. This report will investigate the former and determine the impact of traffic onto the immediate road network surrounding the site. 1.3 Warrants and Extent of study In order to identify the relevant input, the following guidelines taken from the Manual for Traffic Impact Studies of the Department of Transport were followed: o Threshold Value (in terms of trips generated) for Traffic Impact Studies: For this development less than 150 trips will be generated in the Peak Hour, therefore a Traffic Impact Study is warranted. o Extent of Analysis : For a Traffic Impact Statement, the operation of the first intersections on either side of the access has to be evaluated. o Assessment Years : The development is generating less than 150 trips in the peak hour; therefore a Base Year assessment is required. \\roadsrv1\roads_data$\022210.R Kendal Ash Plant 1\01 Design Records and Calculation Files\04 Road 1 Calculations\Traffic\Report\Traffic Impact Study R2.doc Kendal Power Plant Ash Disposal Facility 1.4 Study Area The locality and roads surrounding the power station and the ash disposal facility are shown in Figure 1-1 below. The site is bounded by Road D1390 and D686. D1390 is a gravell road running north south linking local mines onto the D686 which subsequently intersects with the N12 national Road. Figure 1-1 : Local Locality Plan SITE 1.5 Methodology o Desktop Study Project Inception and Planning Review of information provided by client (Zitholele (Pty) Ltd Identification of traffic counts locations o Data Collection Visual Site Inspections Traffic Counts \\roadsrv1\roads_data$\022210.R Kendal Ash Plant 1\01 Design Records and Calculation Files\04 Road 2 Calculations\Traffic\Report\Traffic