Blinking rear lights are attention getters, but interfere with judgement of distance. This may explain why some drunk drivers have run into police vehicles stopped with their lights flashing. Consider using your lights during the day when visibility is poor or when traffic is busy. Lane Position Ride two to three feet to the outside of the travelled portion of road. When lane narrow, consider moving into lane to prevent other vehicles from overtaking unsafely.
Hand signals are appropriate when manoeuvering in traffic.
Use left or right arm as appropriate. Look back over shoulder before any movement across lanes. Lane Position is determined when approaching intersections by whether you want to proceed straight through the intersection, turn left, or turn right. Proper lane position means other cyclists and drivers can correctly predict what you plan to do in the intersection. Through Get behind or to the left of cars turning right.