2008-04-15_REVISION - M1980244 (268)

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Cripple Creek & Victor Gold Mining Company MLE Traffic Impact Study The Year 2000 HCM, published by the Transportation Research Board (TRB) of the National Research Council, sets forth the six different levels of service (LOS) which are the result of various combinations of geometrics, traffic control, traffic volume, and traffic operating conditions. The levels of service are "A" through "F", with "A" representing the best free-flow traffic conditions with little delay, and "E" representing the capacity of a facility. LOS "F" represents breakdown, congestion, long delays, and very poor flow conditions. The results of the analysis are contained in the appendix and summarized in Table 2. Control delay is the amount of delay caused by the traffic control (i.e., stop sign, signal) for a vehicle approaching an intersection that has to slow down from the normal speed, wait in queue, move up to the stop line, wait for a gap in traffic (or until the signal turns green), depart, and accelerate back up to the average speed again. • • Table 2 - Existing AM and PM Peak Hour Level of Service Summary AM Peak Hour PM Peak Hour Intersection Description Existing Traffic Existing Traffic LOS Control LOS Control Dela Dela SH 67/Carlton Access Unsignalized Intersection Eastbound Left A 8.3 A 7.4 Southbound Left/Right A 8.9 A 9.4 CR 82 /Ironclad Access jU ~ ., _ - - nsignalized Intersection --.,_. - ~ _~_._ Westbound Left/Thru A 7.4 A 7.3 Southbound Left/Right A 9.2 A 9.2 As indicated by the results, all turning movements are currently operating at LOS A, which is considered an excellent level of service. Impacts of the MLE on Traffic Volumes and Roadway Facilities In general, the MLE project will extend mining operations into the future by mining new areas within the mining boundary, but without an increase to the daily mining operational levels. Other aspects of the MLE project include new overburden storage areas and the Phase 5 VLF. One of the impacts from the MLE project to area roadways will be to CR 82 between CR 81 and CR 821, and CR 83. The creation of the East Cresson overburden storage area will remove CR 83. The creation of the Wildhorse Extension of the East Cresson Mine will impact CR 82 on its north end. In order to mitigate these impacts, CR 82 (between CR 81 and CR 821) is proposed to be realigned to the east and north of its current location. The MLE project will also necessitate a relocation of the Ironclad access to be further to the north. Mine-related traffic will still enter the mine at the new Ironclad access. Figure 4 shows the affected Interstate Engineering, Inc. April, 2008