M52 and long exposure

As I try to learn more about using my kit, experimenting with narrow apertures and low ISO settings means long exposures. Riding the M52 metro line in Amsterdam presented a lot of opportunities. As I’d not brought a tripod with me, I had to find bits of infrastructure to brace the camera as I took exposures of up to 30 seconds. Luckily, each platform had plenty.
The trains on these lines appear to be equipped with LED lights at the front and on the sides, perhaps the frequency of the lights is responsible for the staggering effect in the orange streak.

Long exposure of LEDs