I received an email this week from a senior real estate executive who was sharing the fact that, in response to COVID, he had decided to give up driving completely. He was now cycling everywhere -- whether for work or for personal errands. And it was doing wonders for his health and his overall well-being.

Indeed, this feels like some sort of golden era for urban cycling. Back in May I wrote about how Toronto City Council had just approved the largest ever one-year expansion of bike lanes. Some 40 km. When have we ever moved this quickly and without months (okay, years) of painful debate? Probably never.

Of course, it's not just Toronto. This is happening all over the world. Here are some of the numbers (taken from this recent Journal article):

• Paris added 400 miles of pop-up bike lanes across the region -- all of which didn't exist before the pandemic - some of the streets being tracked have seen a doubling in usage

• Oakland closed almost 10% of its streets to cars

• Montreal is adding an additional 70 miles of pedestrian and cycle paths

• Bogota is the midst of planning for 47 miles of temporary bike lanes

• The UK has fast tracked over $315 million in capital spending for bike infrastructure -- referring to this as a "once-in-a-generation" opportunity

• New York's bike share service (Citi Bike) saw year-over-year usage surge 67% in the first 10 days of March alone -- before any shelter-in-place rules were even imposed

There are obvious reasons for this rush to build out cycling infrastructure. We're in the midst of a global health crisis and people are staying away from public transit in big numbers. But I think it's also important to keep in mind that in many / most cases, there is really no other viable mobility solution. You cannot take all the people that used to ride the tube in London and plop them into cars. There isn't enough space.

So cities all around the world are doing the sensible thing and acting fast to make sure that it's safer for people to move about on bikes. But as we all know, humans tend to have a bias toward the status quo. And so when this is all said and done, I suspect that many of these pop-ups will end up sticking around. And that will be a good thing for cities.

I spent a good chunk of this morning talking and thinking about underground building details that most people (unless you're in the industry) would never think to consider. This is not a criticism on most people. I mean, I don't know how iPhones are made. I just use and enjoy them. But when it comes to buildings, I'm paid to ask questions and understand how things work.

There's a lot of risk in the ground.

You have to think about things like bearing capacity, environmental contamination (usually), hydrostatic pressure and, generally, how you're going to manage water, particularly if you have a high groundwater table. Usually this last one is about making sure you're keeping the water out. A pretty important detail both below and above grade.

So when I came home tonight and saw the below tweet, I felt obligated to write about it.

If you read the reply from NYC's Metropolitan Transportation Authority, you'll see that this is them testing something they call a "flex gate." It is a flood barrier that allows them to seal off subway entrances in the case of a storm surge and they run these tests (shown above) for 4 hours at a time to make sure they're installed property. This one was.

Managing water is a big part of city building. New York City, Miami, Venice, and countless others know this all too well right now.

I received an email this week from a senior real estate executive who was sharing the fact that, in response to COVID, he had decided to give up driving completely. He was now cycling everywhere -- whether for work or for personal errands. And it was doing wonders for his health and his overall well-being.

Indeed, this feels like some sort of golden era for urban cycling. Back in May I wrote about how Toronto City Council had just approved the largest ever one-year expansion of bike lanes. Some 40 km. When have we ever moved this quickly and without months (okay, years) of painful debate? Probably never.

Of course, it's not just Toronto. This is happening all over the world. Here are some of the numbers (taken from this recent Journal article):

• Paris added 400 miles of pop-up bike lanes across the region -- all of which didn't exist before the pandemic - some of the streets being tracked have seen a doubling in usage

• Oakland closed almost 10% of its streets to cars

• Montreal is adding an additional 70 miles of pedestrian and cycle paths

• Bogota is the midst of planning for 47 miles of temporary bike lanes

• The UK has fast tracked over $315 million in capital spending for bike infrastructure -- referring to this as a "once-in-a-generation" opportunity

• New York's bike share service (Citi Bike) saw year-over-year usage surge 67% in the first 10 days of March alone -- before any shelter-in-place rules were even imposed

There are obvious reasons for this rush to build out cycling infrastructure. We're in the midst of a global health crisis and people are staying away from public transit in big numbers. But I think it's also important to keep in mind that in many / most cases, there is really no other viable mobility solution. You cannot take all the people that used to ride the tube in London and plop them into cars. There isn't enough space.

So cities all around the world are doing the sensible thing and acting fast to make sure that it's safer for people to move about on bikes. But as we all know, humans tend to have a bias toward the status quo. And so when this is all said and done, I suspect that many of these pop-ups will end up sticking around. And that will be a good thing for cities.

I spent a good chunk of this morning talking and thinking about underground building details that most people (unless you're in the industry) would never think to consider. This is not a criticism on most people. I mean, I don't know how iPhones are made. I just use and enjoy them. But when it comes to buildings, I'm paid to ask questions and understand how things work.

There's a lot of risk in the ground.

You have to think about things like bearing capacity, environmental contamination (usually), hydrostatic pressure and, generally, how you're going to manage water, particularly if you have a high groundwater table. Usually this last one is about making sure you're keeping the water out. A pretty important detail both below and above grade.

So when I came home tonight and saw the below tweet, I felt obligated to write about it.

If you read the reply from NYC's Metropolitan Transportation Authority, you'll see that this is them testing something they call a "flex gate." It is a flood barrier that allows them to seal off subway entrances in the case of a storm surge and they run these tests (shown above) for 4 hours at a time to make sure they're installed property. This one was.

Managing water is a big part of city building. New York City, Miami, Venice, and countless others know this all too well right now.