I saw a fleet of these cargo bicycles heading down Broadway a week or so ago and today read an article about them in the Globe & Mail.
On the face of it, it all sounds fine and environmentally friendly but I have reservations. The ones I saw on Broadway were holding up a long line of traffic who were stuck more or less idling along until they could get around them. Those vehicles probably poured out more exhaust than they might otherwise so the environmental effects may not be quite what as good as might be hoped for.
A quote in the G&M says : “Our cargo tricycles are more efficient in the congested city core. The smaller size allows us to bypass gridlock and park virtually anywhere,”. At 1.2 meters wide, I have doubts about their ability to bypass gridlock unless they are able to stay in the bike lanes. And park anywhere ? I wonder how other cyclists will react when they block the bike lanes.
I'm sure they have their good points but I just don't think they are as positive as "advertised".