I've just been reading the short version on the Metro Report website.

Reading what they have published suggests nobody has any idea how it happened (apart from high speed into a curved junction, but how that was so is not explained) so there are recommendations for Africa. Including reducing speed limits to Melbourne levels, which will hardly make a difference if a tram is already doing 73kmh at a 20kmh junction :-O

http://www.metro-report.com/news/light-rail/single-view/view/15-recommendations-in-croydon-tramlink-derailment-report.html http://www.metro-report.com/news/light-rail/single-view/view/15-recommendations-in-croydon-tramlink-derailment-report.html

I'll now read the full version Mal posted :-)