The government has put in place a system to reduce dwell time from the existing nine days to less than two days for Afghan transit containers at Karachi and Gwadar ports. — Reuters/File ISLAMABAD: The government has put in place a system to reduce dwell time from the existing nine days to less than two days for Afghan transit containers at Karachi and Gwadar ports. The target is to enhance Afghan cargo container clearance via the Green Channel to 80pc at Pakistani ports under transit trade while only 20pc containers may be marked for yellow channel (marked for assessment) or the Red Channel (marked for examination).