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Light Fixture Requirements <br />Photometric Analysis <br />IES Recommendations <br />Item <br />Fixture <br />Spacing Average (fc) Avg: Min <br />Total Number <br />Of Fixtures <br />Min. of 0.6 Max. 10:1 <br />Feasibility Report:75-feet ----91 <br />Analysis 1:80-feet 1.8 9:1 85 <br />Analysis 2:100-feet 1.5 7.5:1 72 <br />Analysis 3:110-feet 1.5 15:1 69 <br />Since the 100-foot spacing between poles allows less light fixtures, but meets all <br />IES standards, it is recommended that the larger spacing be used on this project. <br />The pole spacing will not match that constructed along Trail Segments 9 & 10; <br />however the reduction in materials and resultant saving in costs is enough <br />benefit to justify this change. Furthermore, it is unlikely that the difference in pole <br />spacing between Trail Segments 9 & 10 on the south side of County Road 10 <br />and Segments 1 – 5 on the north side will be visibly noticeable. <br />Estimated Lighting Costs <br />The following table shows the estimated costs of the lighting options discussed <br />above. Costs are based on the estimated unit prices for the lighting fixtures from <br />the Feasibility Report: $1,800 for each standard shoebox lighting unit (Emco <br />Shoebox) and $4,300 for the decorative lighting units (Lumec Domus). <br />Lighting Cost Estimates <br />Trail Segments 1-5 <br />Decorative Fixtures Included <br />Decorative <br />Fixtures <br />($4,300/ea) <br />Standard <br />Shoebox Fixtures <br />($1,800/ea) <br />Project <br />Total <br />Fixtures <br />Total <br />Lighting <br />Cost* <br />Savings <br />Quantity Cost Quantity Cost Quantity <br />Feasibility <br />Report 11 $47,300 80 $144,000 91 $191,300 -- <br />Analysis 1 <br />(80-foot)10 $43,000 75 $135,000 85 $178,000 $13,300 <br />Analysis 2 <br />(100-foot)10 $43,000 62 $111,600 72 $154,600 $36,700 <br />*Construction cost only for purpose of comparison. <br />The preceding table shows that by using the larger 80-foot or 100-foot spacing <br />between light fixtures, the City can realize a project cost savings relative to the <br />layout included in the Feasibility Report. Note that this cost savings also <br />includes the $2,500 from the conversion of the one non-intersection decorative <br />light identified in the Feasibility Report to a standard fixture.