Another fine example of Turkish innovation was evident on our latest visit, the colour coded dolmus, there were one or two at first, then about mid June almost overnight most of them had their bonnets painted an array of colours, orange for Tasyaka, dark blue for Calis, gold for Sakklikent (very posh !!!) etc., all except the "executive" Olu Deniz dolmus (which are obvious anyway).
We use them a lot and find this system really quite useful to see which dolmus is which without scrutinising for the signs in the windscreen !. The simplest ideas are often the best !