A dreadful pile of hyped up stuff, but worth noting that the taxi rank at Glasgow Central is barely 12 taxis worth, and they have a holding area to feed in cabs. A dynamic road system with a rapidly turning over pool of cabs - ie no waiting stack taking up space, would be sensible, and cabs from distributed ranks around the station should aid dispersal, whilst having all vehicles that do enter the station area clearly moving through on a stop and quickly move on basis.
However the 'ban' style of management highlights the failure to deliver an effective management regime for this issue. Responses to the Scotsman piece highlight this, much in the same way that so many other security measures are poorly delivered - good policing is invisible - not pseudo soldier police strutting about with SA weapons which would create panic and carnage if fired off in spaces rich with hard steel stone and concrete surfaces to riccochet around from.