Hi, nice initiative, really looking forward to it. I have a suggestion about the entrances/exits, it may not be very common, but i remember seeing something similar here in portugal, the right lane becomes the exit and entrance and leaves the left lane to whoever wants to proceed, maybe i can explain myself better with a pic. Ok, so, the right lane works as the left turning lanes in the avenues and the left lane works normally and since you can't cross the continuos white line it works somehow has an acceleration lane, i don't know if this is possible since the square where the lines aren't dashed can't let cars cross to the other lane.