In Japan I see different markings on platforms. I think these have to do with lining up for each train based on the line type and the number of cars, but I can't seem to ever get it right. How can I read what these mean? Is there a standard (format) that I might see across rail lines?
They seem to have different colors, number-characters, numbers in circlesnumbers in circles and number pairsnumber pairs.
This is Keikyu main line at KK59, not japan-rail, but I have seen similar markings on JR platforms.