Making frequent sudden stops would least likely cause which of the following issues?

Frequent sudden stops primarily impact the vehicle's braking system and the comfort level of passengers. Sudden stops can lead to excessive wear on brakes due to the increased demand placed on them in order to bring the train to a halt quickly. Passengers also experience discomfort during abrupt halts, causing a potentially negative travel experience.

While these factors are directly related to the behavior of the train during sudden stops, improper tire inflation is generally more related to the maintenance and condition of the tires themselves over time. Tire pressure issues are typically a result of environmental factors, neglect in regular maintenance, or other mechanical concerns, rather than the immediate effects of frequent sudden braking. Therefore, making frequent sudden stops would be least likely to cause improper tire inflation.