Twice green in traffic light regimes is the most obvious way of reducing waiting times for cyclists, according to traffic control specialist Bo Boormans of DTV Consultants. ‘Twice green is feasible in almost all intersections. And in case this causes problems in peak hours, you can if necessary switch off the double green stage at those times. I think that waiting times for cyclists - outside peak hours anyway - can be reduced to 60 per cent in almost all cases. Other hints for a better regime 1 introduce twice green per cycle (if necessary outside peak hours) 2 standard piggyback with parallel public transport, car and pedestrian traffic 3 detection loops at a distance 4 allow for left-turning cyclists by combining green 5 allow for right-turning cyclists by separate path or right-on-red allowed 6 green wave for cyclists 7 default red light regime 8 shorter cycle times 9 default green (in the absence of conflicting traffic) 10 all cyclists green at once