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- W2601549063 abstract "The density of traffic over Europe has been steadily increasing for several years. In 1996, traffic growth rate has been close to 5% which means that, at turn of this century, average number of aircraft per day will be close to a 1996 peak day traffic. We have been designing and implementing mock−ups and prototypes for airspace and air traffic flows managers. The experimental platform SHAMAN is being developed for providing operators with a relevant evaluation of cost of a set of regulation measures, as efficiently and as quickly as possible. SHAMAN slot allocation module is based on constraint programming. The cost function is sum of delays. The constraints we treat are airport and sector capacity constraints, flow rates, and maximal delay associated to an individual aircraft or to a traffic flow. Different slot allocation strategies (heuristics) have been experimented: planned, first served, on most saturated constraint, first served, and more generally, the cheapest flight, first served with cost of flight depending on minimal delay to get flight outside a constraint and on level of saturation of constraint. Results will be given during presentation. The evaluation of quality of a slot allocation process cannot be restricted to output of total delay generated. Different cost indicators have been defined: distribution of delays, sum of delay progression, individual cost of a constraint, marginal cost of a constraint, distribution of demand, use of capacity. Beyond interest of evaluating slot allocation strategies, module we have implemented aims at analysing cost of airspace and flow management techniques : in field of airspace design and organisation: evaluation of gain of increasing hourly capacity of a sector (marginal cost) and calculation of maximal capacity of a sector, keeping ATC context unchanged. · in field of ASM, in context of flexible use of airspace (EATCHIP): aid for scheduling use of temporary segregated areas, evaluating cost of activation of a military area using differential capacities for sectors interfering with latter; ¨ evaluation of gain of using a conditional route; in field of ATFM: both pre−tactical and tactical phases are concerned by evaluation of cost of an ACC configuration: depending on number of control positions available at one time, flow managers have to find out which configuration of ACC suits demand in most effective way; during pre−tactical phase, definition of a minimal set of restrictions has to be done. The smaller set is, easier and more efficient slot allocation will be; strategic ATFM: evaluation of cost, for rest of traffic demand, of assigning maximal departure delay to flights bound to or coming from scheduled airports; during pre−tactical and tactical ATFM phases, flow managers have to evaluate cost of a re−routing: using a new route means decreasing load of sectors while increasing load of others. Moreover, a new route can be selected combining a change of one ACC configuration. Computational results that will be given during presentation have been worked out using real data sets that correspond to daily capacity and traffic over France." @default.
- W2601549063 created "2017-04-07" @default.
- W2601549063 creator A5010942997 @default.
- W2601549063 date "1997-06-17" @default.
- W2601549063 modified "2023-09-27" @default.
- W2601549063 title "Evaluating the Cost of ASM/ATFMMeasures" @default.
- W2601549063 hasPublicationYear "1997" @default.
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