The airline industry is an important part of Linköping's industry, with Saab as one of the city's largest companies and employers. Adjacent to Saab is Linkoping City Airport, which air traffic is shared by both the civilian and military traffic from Saab.
In 2014 the paving for the airport runway need to be replaced and in conjunction with the renewal there are plans for an expansion of the runway. Either by just widen the lane or also extending the lane with 600 meters to the southeast.
The biggest reason for Linköping City Airport to expand their runway is to accommodate larger airplanes. While renewing the runway the current stormwater system needs to revised as many parts of the runway gets flooded in heavy rain. The system also needs an upgrade to be able to handle an increase in stormwater. A fundamental solution how to solve storm water management is presented in the report. The report also addresses some problems that remain to be solved.
The report describes stormwater planning in general and also the planning for the rebuilding of the runway at Linkoping City Airport. To limit the work only one suggestion is processed in the report. The suggestion with both a broadening and extension of the runway is presented to see if it is possible to drain the stormwater from the entire runway to the west. A requirement throughout the planning has been that the new system can't add more stormwater than it does today to the current system in the western part of the airport. Therefore the volume for a detention storage has been calculated.
The rational method has been used for sizing the pipes. For the calculations of the detention storage flow time has been taken into account.
The result of the planning indicates that there are large amounts of stormwater that will be needed to be delayed. The result is presented in a number of plan and profile drawings showing the location of selected wells and pipes in both horizontally and vertically perspective. The result of the planning also shows that it is quite possible to divert surface water to the western parts of the airport, with the help of gravity. However a disadvantage is that the amount of surface water that needs to be delayed is about 1500 cubic meters, and space to construct the detention storage is scarce.
The conclusion of the work is that the project requires additional planning and multiple options for the horizontal planning of the stormwater system to find the solution that has the highest economical sustainability. Costs need to be considered in the planning, and there needs to be an economic reasonableness if the airport is going to expand in 2014.