overloaded

loaded too heavily

Was it deliberate that the first week of October 1961 was chosen to conduct a national survey of passenger usage? Why October of all months, when the holiday season was over and families back at work and at school? Was this a fiddling of the figures to make an unfair case against rail-dependent resorts such as those in the West Country, Norfolk, Lincolnshire and East Yorkshire, where previously overloaded summer services would now only have a handful of locals on board?

of a word, having multiple meanings depending on context

of a name, used for more than one variable or procedure etc; differentiated by the compiler based on context