Something strange about new york city subways

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When New York City subways slow down, passengers experience a forward force due to inertia, followed by a backward jerk when the train stops. This phenomenon is explained by the physics concept known as "jerk," which refers to the rate of change of acceleration. The sudden change in motion can catch passengers off guard, making it difficult to maintain balance. As a result, the rapid deceleration can lead to a feeling of being pushed backward. Understanding this physics principle helps clarify the sensations experienced while riding the subway.
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I've always noticed something strange about new york city subways. When they start to slow down, you feel a force pushing you forward, which seems fine. However, the subway car actually stops, you feel a jerk backward at that moment. Is there an explanation for this?
 
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The concept is, in fact, called "jerk": http://en.wikipedia.org/wiki/Jerk_(physics )

Since you are leaning backwards you just about fall over since the rate of change of acceleration is faster than you can react to.
 
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