Final answer:
The information given does not substantiate the claim of a rail car with military explosives derailing near a city park; it covers other contexts involving railways and events.
Step-by-step explanation:
The question 'A rail car transporting military explosives derailed near a city park' must be evaluated based on historic events or situations to determine its veracity. However, the information provided does not substantiate this scenario, rather it provides various contexts where railways and their surroundings play different roles, from historical transportation and tragic events to military usage and transportation of soldiers. The subjects depicted include the efficient transition from horse-drawn carriages to trolleys, the historical impact of the federal building bombing in Oklahoma City, the military maintenance of a nuclear test site, societal indications from an abandoned rail station, the thermal dynamics of cutting a railroad tie, as well as historical military transport. None of these directly answer the question about a rail car derailment involving military explosives near a city park, which leaves the true/false nature of the statement unverified within the information provided.