Mr. Allen mentioned in his testimony on Tuesday that the obligatory measures should cover restrictions on activities. He was proposing business hours for certain types of railway activities in sorting yards near areas with high population densities. He suggested that this would be an effective way of pushing the railways to make better choices. He thought that some of the railways would put their sorting operations out towards the Port Mann yards, where there is no high population, and move fewer activities into the New Westminster Quay area. So that's one proposal.
The other proposal we've heard today, from Quebec and Lévis, is to set restrictions or regulations on decibel levels. I'd like to ask each of the witnesses to comment on the obligatory aspect of the regulation. Should it be based on activities and have restricted hours, which has the advantage of restricting night activities, or should it be based on decibels, which may be more difficult to track?
I'd like to start with you, Mr. Lowrie, and then work through each of the witnesses.