The people in favour haven't even come up with a compelling argument for why this highway is even necessary.
- Increased connectivity and redundancy in the highway network that allows more travel routes. Spreading out traffic over multiple routes will always work better than funneling them into one, think why the 401 is so bad. If there is an accident or severe weather impacting the 400, the entire corridor isn't crippled. This happens not even because of cottage country traffic but with commuters and recreational users that want to access the many things to do up there. Let me be clear that this is not a "one lane bro solve traffic forever" scenario, it literally is creating a new connection where there was not one before. And the point is not purely to solve traffic, it is to manage it. The same way that a good transit network does, you don't want Line 1 being your only backbone. Adding more subway lines will increase ridership ("traffic" for arguments sake), but it will also manage those riders far better than a single line could. Think about how the entire TTC network has a meltdown when some portions of the subway close.
- There exists no connection between the 400 and 404 after Bradford for a good 9km until Davis, and even then, you are funneled into inefficient and dangerous Newmarket stroads to get to the 404. The Bradford Bypass would be significant in the fact that as a bypass, it does not interact with any development that slows you down. It is also far safer.
- Takes significant through traffic away from Bradford, meaning the streets don't need to be widened and reduces the bottleneck in that area.
- An at grade expressway would work but it would be somewhat less efficient and probably not even much more environmentally friendly (you're still building a big bridge in the marsh). Also, grade separation would have far better speeds.
- A surface option would create new stroads. Queensville has developmet on it already and if you are going to bother with a new ROW then a freeway is not too different.
- A surface option would still have poor connectivity with the 400 and 404, negating its purpose as a high speed connection.
- It is not just bypassing Bradford, but also everything south of it. Anyone travelling to Markham and eastward will massively benefit from this.
- Usually I would not support a freeway if a transit line could do the job better, but in this situation, transit is not even particularly relevant which shows that it is not about whether to build this or a transit line, but a freeway or some half-assed arterial/7 lane stroad. Let's at least do it right. The Netherlands even knows this, they build freeways everywhere because it is part of having an efficient road network.
- The one thing I will say is that there is room to argue that the footprint is somewhat space inefficient. The median being wide is fine, since expansion can take place there, but I'm not convinced some of the service interchanges need to be as big as they are.
- Yes, it is environmentally destructive, but unless you want to destroy half of Bradford to have a narrower crossing, there really isn't another way to do this, as painful as it is.