This is an interesting chart from Bloomberg Green comparing some of today's innovations against innovations of the past. At the top of today's innovations are EV batteries, which from 2010-2020, saw annual deployment growth similar to that of US WWII aircrafts. However, when it comes to reducing costs, both EV batteries and solar PV modules come out on top with annual declines approaching almost 20%.
Of course, these probably aren't perfect comparisons. If you look at EV batteries and solar PV modules from 2020 to 2023, their growth rates jump to 72% and 39%, respectively. So who knows if these are the right time slices to be using in order to accurately capture the "key expansion periods." Regardless, it does provide some historical context and it does say something. These are important innovations.
The Dutch now believe that the number is 230cm. This is an increase from a previous recommendation of 200cm. The thinking behind this number is roughly as follows. Apparently there are Dutch laws stipulating that bikes can't be wider than 75cm. So this is the starting point.
But since it's impossible to always ride in a perfectly straight line, there seems to be a generally accepted rule that, at an absolute minimum, cyclists need about 100cm of width to themselves.
If you now double this so that two people can ride side-by-side, you're at 200cm. This is an important design criteria because the Dutch also seem to believe that (1) cycling is a social activity and (2) a child should be able to ride beside their parent. (Love this!)
Finally, add in a bit of buffer so there's room to pass slower cyclists and/or nobody feels like they're going to crash into oncoming cyclists, and you get to 230cm as the ideal width of a single bike lane.
I'm not sure I had given this much thought before, so I look forward to scrutinizing (and possibly measuring) every bike lane I ride in going forward.
Toronto's elevated Gardiner Expressway is a topic that pops up periodically on this blog. We have talked about taking down a portion, realigning a portion, adding a congestion charge,
Their most recent project is something called Standing Grounds. It's a collaboration with New York-based Tei Carpenter (Agency--Agency, NYC) and Toronto-based architect Reza Nik (SHEEEP, Toronto), and I think it's really clever.
If you look closely at the underside of the Gardiner Expressway, you'll see that there are existing downspouts in place that take rainwater, snowmelt, and whatever else from the highway above, down to the ground. What Standing Grounds is going to do (by next month) is take this existing infrastructure and add natural filtration chambers that can remediate this excess water.
I learned today that plants like milkweed, agastache, and yarrow are actually able to absorb road salts and heavy metals like lead, cadmium, and hydrocarbons. So instead of this dirty water flowing from the highway and into the ground, it will soon be filtered by a seemingly simple garden system that looks like this:
This is an obviously positive thing for the city and I love that it is leveraging infrastructure that already exists. As I said: really clever.
Renderings: SHEEEP
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