With reference to Extract B and Figure 1, explain how the rail transit network in West Yorkshire illustrates the basic economic problem.

West Yorkshire Rail Network under Strain
West Yorkshire Rail Network planners have warned that utilization rates for core regional track lines are averaging 94%, well above the recommended safety baseline of 80% needed to maintain schedule stability. By late 2022, commuter complaints regarding service reliability and overcrowding reached historic peaks.
Transport officials indicated that minor station upgrades and rural line frequencies might need to be deferred or cut to safeguard high-density urban commuter corridors and essential freight pathways.
While the Regional Authority pledged £750 million over three years, rail operators argued this fell short of the £1.6 billion required to address the commuting demands of a growing metropolitan population and the cost of upgrading obsolete signaling infrastructure.
Furthermore, train operating companies reported that the system is operating without any reserve capacity, suffering from severe recruitment deficits in key specialized roles, specifically traction unit drivers, signaling technicians, and electrical engineers.