You Decide
|
DJA Construction |
||
|
To Airport Planning Committee: We have reviewed the building site location and have determined the feasibility of construction. The region chosen must be capable of supporting roads, buildings, and active runways, while responding well to seismic activity. The decision to build a low-rise (3 or less floors) or high-rise facility will depend on perimeter and area restrictions, as well as ground stability. Bedrock is reasonably close to the top layer of soil, facilitating construction of foundation and stabilizing of the buildings. The bedrock will easily support a low-rise building. The bedrock beneath the Northern regions including the 20 degree slope, wetlands, and landfill, do not have bedrock sufficiently dense for high-rise and runway construction. Much of this bedrock contains fissures and caverns. In this site location, attention must be paid to earthquake loads. Buildings will be fixed to foundations using conventional earthquake preparatory techniques, and more current earthquake preparedness materials must be used during construction. Some regions of the site will provide some difficulty. Building in the sloped regions of the site will obviously provide more challenge and expense than building in the flat grassland region. Land will have to be leveled, and soil redistributed. Additionally, tiered foundations may need to be constructed. It should also be acknowledged that building in the wetland region will require stabilizing of the soil, which can be an extensive process including dredging, filling, and construction of complex drainage systems. Construction near the river may require similar processes. Additionally, compliance with environmental laws and regulations may require for additional structures or techniques to be used. We always consider limiting erosion, regardless of the region of construction. When planning development of the airstrip and communication facilities for the airport, attention should be made to the proximity to electric lines and electromagnetic fields. Current electric power plants occur on the southwest corner of the land plot. They produce ample electromagnetic radiation, which can interfere with airplane communication and navigation tools. Special barriers can be constructed to limit the field laterally, but this is costly and labor-intensive. It is wise to build the runway sufficiently far from the field (several miles away, if possible), to prevent difficulties arising. This will also prevent mid-air accidents involving the power lines in this region. Proximity of the runway to the high-rise buildings of the city of Keene is also an important consideration. Because of the presence of Highway 200, all possible airport sites are distanced from the city somewhat. As long as the required runway space mentioned below is allocated and FAA regulations for approach and take-off angles are adhered to, there is little risk that airplanes will come in close proximity to city buildings. However, as of September 11, 2001, safety issues have arisen about proximity of approaching and departing airplanes relative to regions with high human density. No new regulations have emerged about this issue, but it is certainly something to consider. The runway dimensions for the airport type you are planning must be at least 20,000 feet by 12,900 feet, with the runway centered along the 12,900 feet distance. This space meets FAA requirements for required landing and takeoff space before and after the airplane wheels hit or leave the ground. The airport should be oriented parallel with the wind flow, such that airplanes will take off into the wind. Although we realize that current plans are for a one-runway airport, we hope that current plans will cater to future addition of other runway(s), which may be up to 5,000 feet away from other runways, depending upon orientation. Space for hangars and terminals will need to be allocated outside of the runway space. Most efficient terminals consist of several narrow buildings complete with airplane docking stations. We have reviewed several popular designs, all of which can easily be fit into the desired land site. Roads between passenger terminals and cargo terminals can be constructed, as well, although we will need to collaborate with the Department of Transportation on this planning. We are eager to be working with you on this project. Please contact us as soon as planning is complete, so that we may begin hiring workers, ordering supplies, and commencing groundbreaking. Sincerely, |
||
You Decide Intro
You Decide Scenario
You Decide Decision Making Process