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<br /> <br /> <br />Page 2 <br /> <br />STREET LIGHT AUDIT .............................................................................................................. 6 <br />1. INTRODUCTION ............................................................................................................ 6 <br />2. PROCESS OF DATA COLLECTION .............................................................................. 7 <br />3. DATA RESULTS ............................................................................................................ 9 <br />3.1. Total Inventory Overview .................................................................................................... 9 <br />3.2. Inventory According to Current Policy .............................................................................. 10 <br />3.3. Ameren Inventory ............................................................................................................. 11 <br />Street Light Types .................................................................................................................... 11 <br />Bulb Types ................................................................................................................................ 13 <br />Inventory Results by Fixture and Bulb Type ............................................................................. 14 <br />3.4. University City owned street lighting ................................................................................. 14 <br />4. ENERGY/COST SAVING OPTIONS ............................................................................. 16 <br />4.1. Retrofit bulbs ..................................................................................................................... 22 <br />4.2. Decommission (300 ft) ...................................................................................................... 24 <br />4.3. Decommission lights (300/200 ft) ..................................................................................... 26 <br />4.4. Decommission unwarranted lights.................................................................................... 28 <br />4.5. Transfer costs of ―private‖ lights ....................................................................................... 30 <br />4.6. Transfer cost of lights located adjacent to Washington university property ..................... 31 <br />4.7. Acquisition of lights from Ameren ..................................................................................... 31 <br />Clayton’s Annual Street Light Budget as an example .............................................................. 32 <br />Contracting maintenance ......................................................................................................... 33 <br />6M Rate Comparison Costs ..................................................................................................... 33 <br />Acquisition of Post Top style lights Only .................................................................................. 35 <br />5. STREET LIGHT POLICY .............................................................................................. 36 <br />5.1. University City Street Light Policy ..................................................................................... 36 <br />5.2. Comparison Policies, Mo-DOT, RP-8-00.......................................................................... 37 <br />Comparison Policies ................................................................................................................. 37 <br />Mo-DOT Engineering Policy Guide (MoDOT, 2011) ................................................................ 40 <br />5.3. Street Light Policy Formative Factors ............................................................................... 43 <br />Roadway Classification ................................................................................................................ 43 <br />Pedestrian Traffic ..................................................................................................................... 44 <br />Street Width .............................................................................................................................. 44 <br />Light Loss ................................................................................................................................. 44 <br />Scotopic, Mesopic, and Photopic Ranges ................................................................................ 45 <br />Street Light Audit – Table of Contents <br />