Big chaos and record traffic jam this Tuesday morning on the E411 in the Namur-Brussels direction. If users who turn to the right to take the ring at the Léonard crossroads have been impacted for many months, those who continue straight to pass under the Léonard tunnel towards Auderghem had the unpleasant surprise of finding that only one lane was open this Tuesday morning. This impacts all users from Overijse, and even upstream, with between 40 minutes and an hour of travel to be expected just between Overijse and the Leonard tunnel.