Strange way to control jaywalking

I was going to Banani from Uttara. My car stopped at the signal of Hazrat Shahjalal International Airport roundabout where I witnessed a strange incident. A link road from the roundabout led to Hazi camp. Two traffic police were standing at the opposite poles of the road holding a tight rope and they were loosening it to let the passers-by cross the road. They invented this method for a smooth traffic movement as jaywalking is common here. But that day something different happened: a pedestrian tripped over the rope and fell as the rope was raised suddenly. This type of ridiculous method for controlling jaywalking should be stopped.  
Samiul Raijul
North South University
Dhaka