St Austell to A30 Link Road Full Business Case Social Distributional Impact Report Cormac / Cornwall Council Project number: 60571547 - 0127 July 2020 St Austell to A30 Link Road Full Business Case Project number: 60571547 - 0127 Quality information Prepared by Checked by Verified by Approved by Samantha Taylor Stephen Payne Maurice Houkes Thea Wattam Douglas Chapman Revision History Revision Revision date Details Authorized Name Position 0 15/01/20 First Draft 15/01/20 Thea Wattam Associate 1 09/04/20 Second Draft 09/04/20 Thea Wattam Associate 2 15/06/20 Final Issue 15/06/20 Nick Woollett Regional Director 3 17/07/20 Final Issue 17/07/20 Nick Woollett Regional Director Prepared for: Cornwall Council AECOM 2 St Austell to A30 Link Road Full Business Case Project number: 60571547 - 0127 Prepared for: CORMAC / Cornwall Council Prepared by: AECOM Limited Murdoch Building Radnor Road Scorrier TR6 5EH United Kingdom T: +44 (1752) 676700 aecom.com © 2020 AECOM Limited. All Rights Reserved. This document has been prepared by AECOM Limited (“AECOM”) for sole use of our client (the “Client”) in accordance with generally accepted consultancy principles, the budget for fees and the terms of reference agreed between AECOM and the Client. Any information provided by third parties and referred to herein has not been checked or verified by AECOM, unless otherwise expressly stated in the document. No third party may rely upon this document without the prior and express written agreement of AECOM. Prepared for: Cornwall Council AECOM 3 St Austell to A30 Link Road Full Business Case Project number: 60571547 - 0127 Table of Contents 1. Introduction ...................................................................................................... 7 1.1 Background ........................................................................................................................................ 7 1.2 Development since the Outline Business Case (OBC) .......................................................................... 9 1.3 Purpose of the Distributional Impacts Report ........................................................................................ 9 1.4 Methodology ..................................................................................................................................... 12 1.5 Summary of impacts.......................................................................................................................... 12 2. User Benefits ................................................................................................. 15 2.1 Step 1: Screening ..................................................................................................................................... 15 2.2 Step 2: Assessment .................................................................................................................................. 15 Step 2a: Impact area ....................................................................................................................................... 15 Step 2b: Social groups .................................................................................................................................... 16 Step 2c: Amenities .......................................................................................................................................... 16 2.3 Step 3: Appraisal ....................................................................................................................................... 16 Step 3a........................................................................................................................................................... 16 Step 3b........................................................................................................................................................... 17 3. Noise ............................................................................................................. 19 3.1 Step 1: Screening ..................................................................................................................................... 19 3.2 Step 2: Assessment .................................................................................................................................. 19 Step 2a: Impact area ....................................................................................................................................... 19 Step 2b: Social groups .................................................................................................................................... 20 Step 2c: Amenities .......................................................................................................................................... 21 3.3 Step 3: Appraisal ....................................................................................................................................... 22 Step 3a........................................................................................................................................................... 22 Step 3b........................................................................................................................................................... 25 4. Air Quality ...................................................................................................... 27 4.1 Step 1: Screening ..................................................................................................................................... 27 4.2 Step 2: Assessment .................................................................................................................................. 27 Step 2a: Impact area ....................................................................................................................................... 27 Step 2b: Social groups .................................................................................................................................... 28 Step 2c: Amenities .......................................................................................................................................... 28 4.3 Step 3: Appraisal ....................................................................................................................................... 29 Step 3a........................................................................................................................................................... 29 Step 3b........................................................................................................................................................... 33 5. Security ......................................................................................................... 36 5.1 Step 1: Screening ..................................................................................................................................... 36 5.2 Step 2: Assessment .................................................................................................................................. 36 Step 2a: Impact area ....................................................................................................................................... 36 Step 2b: Social groups .................................................................................................................................... 36 Step 2c: Amenities .......................................................................................................................................... 39 5.3 Step 3: Appraisal ....................................................................................................................................... 40 Step 3a........................................................................................................................................................... 40 Step 3b........................................................................................................................................................... 40 6. Personal Affordability ..................................................................................... 42 6.2 Step 1: Screening ..................................................................................................................................... 42 6.2 Step 2: Assessment .................................................................................................................................. 42 Step 2a: Impact area ....................................................................................................................................... 42 Step 2b: Social groups .................................................................................................................................... 42 Step 2c: Amenities .......................................................................................................................................... 42 6.3 Step 3: Appraisal ....................................................................................................................................... 42 Prepared for: Cornwall Council AECOM 4 St Austell to A30 Link Road Full Business Case Project number: 60571547 - 0127 Step 3a........................................................................................................................................................... 42 Step 3b..........................................................................................................................................................