[openrailwaymap] Re: Using pzb and lzb absence for "no train protection"

Hi Maarten, I agree that the tags railway:pzb, railway:etcs etc. are chosen awkwardly. The tag should express that these are train control systems; now with railway:pzb=* you have to know that pzb is a train control system. If somewhere in the world the system xyz is added, it is not recognisable from the tag as train protection. Therefore I suggest to change railway:pzb|etcs|lzb|atc|...=yes|no into railway:train_protection:pzb|etcs|lzb|atc|...=yes|no . This would provide more clarity and make it possible to actively set a railway:train_protection=no to express that no train protection system exists and to distinguish it from the lack of information.