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SECTION 3 Conceptual Site Layout Road Geometry The proposed facility is designed to keep traffic flowing in the same general direction and minimizing traffic cross-over points. The conceptual layout uses a counter -clockwise loop, which is an industry standard safety practice, to allow collection vehicle drivers a proper backing site -line, without having to rely on passenger side mirrors. It is assumed that the site of the proposed facility will be located in an area of high groundwater, requiring the placement of approximately 15 feet of structural fill to elevate the transfer building tipping floor to allow gravity feed of solid waste to open -top transfer trailers in the tunnel. The road configuration for each of the vehicle and customer types is discussed in the following sections. 3.1 Transfer Trailers The basic design principle for the site layout is to use perimeter roads for transfer trailer traffic with a counter -clockwise loop to minimize traffic impacts on vehicles accessing the transfer building. Transfer trailers will enter the site and use the bypass lane to maneuver around the scalehouse. The transfer building is designed with a drive-through tunnel to minimize backing of transfer trailers. Loaded and empty trailers will use a lane adjacent to the transfer building (on both sides) for parking. A pit scale will be installed under the load -out port to maximize trailer loads. Once a trailer is loaded with solid waste, the truck will pull through the tunnel and will park, or use the bypass lane to exit the site. Transfer trailers will make a complete circle around the site, passing several merge points, but never having to cross traffic. 3.2 Commercial Vehicles Commercial vehicles will enter the facility and proceed to the scalehouse where their weights will be recorded. Departing the scale plaza, the vehicle will turn left at the entrance to the tipping building, where the vehicle will use a dedicated lane and climb up a 4 ± percent slope to the flat backing apron located outside the tipping building. The vehicle will back in the proper direction (over the left shoulder) into the building where solid waste will be unloaded onto a flat concrete floor. The vehicle will depart the site using an access road and proceed across the scale to record the tare (empty) weight in order to calculate the solid waste tonnage. Commercial vehicles with tare weight on file may use the bypass lane. 3.3 Self -haul Vehicles Self -haul vehicles will use the same general traffic pattern that is used by commercial vehicles, but self - haul vehicles will use a dedicated lane to access the backing apron and separate unloading area. The self -haul vehicle will proceed to a separate unloading area, discharge the material onto the concrete tipping floor, and exit the site using the shared outbound scale lane. 3.4 Yard Waste/Composting Material Traffic Customers dropping off yard waste will proceed to the scalehouse to obtain their weights and proceed along the perimeter access road to the yard waste unloading area. After discharging yard waste material, the vehicle will proceed to the scalehouse. Yard waste traffic will have to cross the loaded - outbound transfer trailer lane. The crossing will not affect traffic because it is estimated that only four to five transfer trailers per day will be hauled offsite (which equals about one trailer every 2 hours). EN1213161143SAC DRAFT -12/23/16 3-1