London Borough of Hounslow Strategic Environmental Assessment for the Hounslow Local Implementation Plan III November 2018 Hounslow Local Implementation Plan for Transport 2019- 2041: SEA Environmental Report 1 Contents CONTENTS ........................................................................................................................................................ 2 CHAPTER ONE: INTRODUCTION ..................................................................................................................... 12 1.1 BACKGROUND TO THE SEA ............................................................................................................................. 12 1.2 AIMS OF THE SEA ......................................................................................................................................... 12 1.3 CONSIDERATION OF HABITATS REGULATIONS ..................................................................................................... 13 1.4 CONSIDERATION OF THE EQUALITIES IMPACT ASSESSMENT (EQIA)......................................................................... 15 1.5 THE SEA PROCESS ........................................................................................................................................ 16 1.6 SCOPE OF THE SEA ....................................................................................................................................... 17 1.7 THE LOCAL IMPLEMENTATION PLAN (LIP3) ....................................................................................................... 18 CHAPTER TWO: BASELINE ENVIRONMENTAL INFORMATION ......................................................................... 20 2.1 BACKGROUND TO THE LONDON BOROUGH OF HOUNSLOW ................................................................................... 20 2.2 BIODIVERSITY, FLORA AND FAUNA ................................................................................................................... 21 2.2.1 Designated Sites Overview ............................................................................................................. 22 2.2.2 Hounslow BAP ..................................................................................................................................... 23 2.2.3 The Highway Network .................................................................................................................... 23 2.3 POPULATION ............................................................................................................................................... 23 2.3.1 Congestion ..................................................................................................................................... 24 2.4 HUMAN HEALTH .......................................................................................................................................... 25 2.4.1 Physical Activity and Obesity ......................................................................................................... 25 2.4.2 Road Safety .................................................................................................................................... 25 2.4.3 Unemployment, Social Exclusion and Deprivation ......................................................................... 26 2.5 AIR QUALITY ........................................................................................................................................... 27 2.6 NOISE POLLUTION ................................................................................................................................... 28 2.7 CLIMATIC FACTORS .................................................................................................................................. 29 2.8 MATERIAL ASSETS ................................................................................................................................... 29 2.9 SOIL & WATER ........................................................................................................................................ 30 2.9.1 Contaminated Land ........................................................................................................................ 31 2.10 HISTORIC ENVIRONMENT AND LANDSCAPE ................................................................................................... 31 2.10.1 Heritage at Risk Register (HAR) and Historic Environment Record (HER) ................................. 32 2.10.2 Transport and The Setting of Heritage Assets ........................................................................... 32 2.10.3 Hounslow’s Urban Context and Character Study ...................................................................... 33 2.11 SUMMARY OF KEY ENVIRONMENTAL ISSUES .................................................................................................. 34 CHAPTER THREE: POLICY REVIEW AND SEA OBJECTIVES ................................................................................ 35 3.1 POLICY REVIEW ............................................................................................................................................ 35 3.2 SEA OBJECTIVES AND INDICATORS .............................................................................................................. 39 3.3 TESTING THE COMPATIBILITY OF LIP OBJECTIVES AGAINST SEA OBJECTIVES ............................................................. 45 CHAPTER FOUR: IDENTIFYING ALTERNATIVES ................................................................................................ 46 CHAPTER FIVE: ASSESSMENT OF LIP ENVIRONMENTAL IMPACTS .................................................................. 47 5.1 ASSESSMENT METHODOLOGY ......................................................................................................................... 47 5.1.1 No Plan ‘Business-as-Usual’ Scenario vs the New LIP Programme ...................................................... 47 5.2 ROAD DANGER REDUCTION PROGRAMME ............................................................................................................ 48 5.2.1 Impact Analysis ................................................................................................................................... 48 5.3 ROAD SAFETY EDUCATION, TRAINING & PUBLICITY (ETP) .................................................................................... 49 Hounslow Local Implementation Plan for Transport 2019- 2041: SEA Environmental Report 2 5.3.1 Impact Analysis ................................................................................................................................... 50 5.4 TRAVEL DEMAND MANAGEMENT .................................................................................................................... 51 5.4.1 Impact Analysis ................................................................................................................................... 51 5.5 BETTER, MORE ACCESSIBLE STREETS.................................................................................................................. 52 5.5.1 Impact Analysis ................................................................................................................................... 53 5.6 DEVELOPING A HOUNSLOW ACTIVE TRAVEL NETWORK ......................................................................................... 54 5.6.1 Impact Analysis ................................................................................................................................... 55 5.7 BUS NETWORK IMPROVEMENTS ....................................................................................................................... 55 5.7.1 Impact Analysis ................................................................................................................................... 56 5.8 RAIL ENHANCEMENT PROGRAMME ................................................................................................................... 57 5.8.1 Impact Analysis ................................................................................................................................... 57 5.9 ENCOURAGING EFFICIENT CAR USE .................................................................................................................. 58 5.9.1 Impact Analysis ................................................................................................................................... 59 5.10 ASSET MAINTENANCE ............................................................................................................................... 60 5.10.1 Impact Analysis ................................................................................................................................. 61 5.11 TOTAL, CUMULATIVE, SYNERGISTIC AND SECONDARY EFFECTS .................................................................................. 61 5.11.1 Total and cumulative effects ............................................................................................................. 61 5.11.2 Synergistic and Secondary effects ..................................................................................................... 65 CHAPTER SIX: MITIGATING ADVERSE IMPACTS .............................................................................................. 67 6.1 ROLE OF MITIGATION IN SEA ........................................................................................................................