Urban Tech Links: UTL

UTL is about exploring past, present and future urban technologies in science and fiction, etc...

Saturday, May 23, 2026

Automatic Selective Door Operation (ASDO) for Trains

https://www.youtube.com/watch?v=YdH5d1ZthmM 

https://www.eke-electronics.com/automatic-selective-door-operation-asdo

https://petardsrailsolutions.com/rail-solutions/automatic-selective-door-operation

https://www.reddit.com/r/transit/comments/orvvzh/how_to_save_money_on_platform_extensions_use 

https://en.wikipedia.org/wiki/Selective_door_operation#International_variations

Posted by JF at 4:23 PM
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From Urban legends to facts about technology, people & places.

Every building, person & invention has a story that may intersect with coincidence, synchronicity or serendipity.

From The_Ghost_in_the_Machine, to things in general, technology & reality always has the potential to be like a double-edged+sword. (-/+)

::

This is a blog network that mostly provides links to various web sites & topics. Its more like a reference directory & less of a place for my commentary. It consists of several links from people with various points of view. Thus, its full of data & speculation from a multitude of sources. While many parts of this blog are updated, other sections might just contain a few lines of information from first posting. Some of these sections may parallel, or intersect with other parts that are not always in a linear order. Anything can be dismissed as coincidence, or perceived as Synchronicity, depending upon ones level of awareness & curiosity.

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JF
This is a general reference blog that links up to several things in addition to science & fiction, the esoteric & the mysterious. It's where mythology & technology, science & fiction, coincidence & synchronicity, occasionally merge. A vast amount of websites are referenced here so that visitors can see & compare various perspectives.
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