Optimal operation interaction (passenger/train/platform) for Greater Cairo Underground metro (GCUM) 1st and 2nd line

The present paper deals with optimizing optimal operation interaction for GCUM 1st and 2nd lines by proposing a methodology based on field survey of travel time, actual headway, passenger waiting time, alighting and boarding passengers to determine the actual passenger density on platform, passenger density in train and target headway, consequently the ideal operation and the corresponding operational costs savers. Using four alternatives (change headway, divide the line into definite links, uses of suitable metro units and overflow of some through stations) under 5 restrictions (Passenger intensity into train, Passenger intensity on platform, Passenger exchange time at metro door, Factor of safety for metro headway and headway at the end of links) and without needing to any additional capital costs, the results show a valuable cost saving for both operation costs and rolling stock capital costs. This paper recommends this methodology to be applied on any metro lines worldwide.