The Amsterdam metro has a total length of around 42 km (26 miles), 5 lines, 39 stations, and around 90 metro vehicles. The metro uses at present three types of metro (M4, M5 and M7); The M5 and M7 are more different than they look at first glance. (photo is made by myself at a public test day.) All trains are maintained at a depot between Diemen South and Verrijn Stuartweg. This is the only part where the third rail is replaced by a short part of overhead wires. The safety system is comparable to ETCS2. If the era is changed to a few years back, the M51 drove from Central Station via Spaklerweg and Zuid heading Amstelveen Westwijk. The line would combine with tram 5 to Amstelveen Centrum. But this would require the S1/S2 metrotrams, which are no longer in service, and the Combino tram as AI. This can make it too complicated, to I suggest to keep it at the timetable of 2025. The frequency on the line differ from 8 on M52 to 10/15 on the other lines. Between Amstel and Holendrecht, the metro is sqeezed between the railway line from Amsterdam to Utrecht. When the V-Irm and SLT are made for other routes, they can give this part extra life. Between Overamstel and Amstelveenseweg the metro is alongside the railway line from Weesp to Schiphol, squeezed between the A4 highway. Here the ICMm and SNG drives as well. Between Henk Sneevlietweg and Isolatorweg the metro is alongside the railway line from Amsterdam Centraal to Schiphol. Here the SNG and Eurostar drive together. Possibly the trains can drive with a loop to prevent too much AI-servicedata. Nice to know: A little older version of the announcement system is online by an enthusiast: https://jeremyhut.nl/gvb/; this includes the famous gong.
