Why the Hajj Train Only Operates for One Week a Year?

The network is based in Mecca, and the reason it only operates for this short annual period is that it's designed for a single purpose. With substantial increases in the number of pilgrims and vehicles carrying them in the holy sites, the road network has become unable to accommodate pedestrians and vehicles simultaneously. The crowding has led to some really tragic deaths in the past. There are other health risks too.