Hm, TMSR has cut out much more than "the big 5" (e.g. DNS ditched too) and with rather good (no ill for sure) effects. I'd say indeed: don't reinvent the wheel and especially not on your own - much better make sure you are part of the place where better "transportation" means are being designed and organically grown really.
Yes: The Most Serene Republic. You'll find it from my blog if from nowhere else (see perhaps under TMSR category for starters); there's plenty of info in the public logs of its forum too.
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We strive for transparency and don't collect excess data.