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Paved paradise? On pollution due to asphalt roads and parking lots

Here’s another quick share of an article mainly about asphalt as a material used for roads, parking lots and roofs:

Pullano, N. (2020) “Sun-heated streets can lead to air pollution strikes – study”, Inverse, [Last accessed: 9/6/2020]

While we have a significant number of roads with asphalt paving or surfacing, the majority of roads are of Portland cement concrete (PCC). Most lots are also PCC or gravel. And unlike in the US, most roofs here are made of galvanized iron (GI) sheets or even clay tiles.

Painted lines are not enough for bike lanes

From the experiences of many biking or trying to bike in the Philippines, painted lines are not enough for bike lanes. Only recently, cyclists using bike lanes that did not have any physical barriers to deter motorists from encroaching have been involved in crashes, with at least a couple being reported as fatal for the cyclists. Here is an article on what cyclists need in order to ensure or at least improve the safety of their commutes.

UTC (2020) “White lines? Cyclists need more,” ITS International, [Last accessed: 8/6/2020]

Commuters on bicycles along the Marcos Highway bridge bike lane

Are there differences regarding cycling in different countries? From a somewhat cultural-behavioral perspective, perhaps there are studies (though I am not aware of them yet) about how peoples from different countries or cities behave with respect to cyclists whether or not there are bike lanes designated for the latter’s use. I recall my experiences cycling in Japan and drivers are generally respectful of cyclists on the roads. Pedestrians, too, are very tolerant of cyclists on the sidewalks or designated areas for walking. Of course, the cyclist would have to do their share of respecting others’ spaces, too, and should behave and position themselves accordingly while traveling.

On the benefits of shared roads during the pandemic

There is evidence, and they are increasing, for the benefits of shared roads. Here is another quick share of an article supporting that:

Brown, M (2020) “Shared-use roads improve physical distancing, research shows,” Medical Xpress, accessed: 7/30/2020]

With the situation in the Philippines and particularly in Metro Manila appearing to be worsening rather than improving, national and local governments should take heed of the evidence for shared-use roads and the importance of active transport to ensure people’s mobility will not be hampered. This is particularly important for our frontliners and other essential workers if we are to survive this pandemic.

On bike shares and the pandemic

We begin August 2020 with another article I want to share. Here is another article on cycling, this time on bike share:

Kanik, A. (2020) “The decisions cities made about coronavirus had a big impact on bikeshare ridership,”,[Last accessed: 7/29/2020]

Our university’s bike share program currently dedicated their bikes for the use of frontliners. Outside UP Diliman, only the City of Pasig has a bike share program. Is it somewhat surprising that these are the only bike shares we know in the country? It should be, considering the potential of bike shares and cycling as a mode of transport for mobility. In fact, two cities, Marikina and Iloilo, which pride themselves having formal bikeways (Marikina even has an extensive bikeway network that began 20 years ago.) have no bike share programs. Is the concept or perhaps the lack of facilities to encourage people to bike safely that is absent and therefore need to be provided?  With the surge of bike users post-lockdown, there should be evidence that bike shares can work but only if cities work on it, too.


File photo of Iloilo City’s bikeway along the Benigno Aquino Jr. Ave. (formerly Diversion Road) taken in 2015.

On data on mobility trends

There are actually a lot of data available on mobility if you know how to look for them. One good source is Apple. Yes, Apple has access to thousands of smart phones that allow them to track individuals (oh you didn’t know that?) movements. Here is the link to Apple’s data:

And here is a graph showing mobility trends in the Philippines from that resource:

Some politicians and political appointees are now saying that we are in this predicament about COVID-19 because of a lack of discipline. That is bullshit. Many stayed home and/or reduced their movements. And then there’s that study showing 90% wore masks when they go out. No, it’s not lack of discipline that’s the problem but the lack of essential services and goods that are supposed to be delivered by those who are suppose to govern and the deficiencies from the start in addressing the spread of the virus especially from abroad. Perhaps these people criticizing Filipinos should look at their mirrors more closely and look left, right and across from they comfy seats to see what’s wrong with the way government has been handling the pandemic?

On the bicycle as the future of urban transport

Here is another quick post where I am sharing an article on the bicycle as the future of transport:

Dans, E. (2020) “Whichever way you look at it, the bicycle is the future of urban transport”,, [Last accessed: 7/17/2020]

I’ve posted about this idea before here and on social media. While some people were engrossed or obsessed about self driving cars, I was asking them how this could be the future of transport when all this leads to is more cars on the roads, and perhaps roads designed to accommodate these vehicles. The evidence vs. self driving cars was already there and the pandemic only emphasized how this could not be the future of transport. Instead, we have something more basic and not even motor-powered – the bicycle. Come to think of it, there is also walking. But then the bicycle is more energy efficient and can take you over longer distances than your feet.

On mass transit and active transport

I recently gave a talk on transport in the new normal. There are a lot of materials that you can refer to if you want good visuals for a presentation. It helps to capture the attention and maybe the imagination of your audience, which in this case was varied. While I assume many to be in the physical, chemical & social sciences, and engineering, I knew that there were also people from media and those who were just interested in the topic. And so I made sure there were a lot of infographics mixed in with bullet points to drive the message clear about mass transit systems being the backbone of transport in highly urbanized cities, conventional transit like buses and jeepneys supplementing and complementing these, and active transport enabled and encouraged as a safe option for many.

I wasn’t able to include the following graphic shared by a friend advocating bicycle use especially for work and school trips. The following graphic comes from TUDelft, which is among the major universities in the forefront of research in transit and cycling. Clicking on the graphic will take you to their Facebook page and more links to their programs.


Note the essential information relating bicycles and transit in the graphic. Do we have similar data in the Philippines (or at least for the National Capital Region)? I hope this stirs interest for research work. There are a lot of topics to take on including even data collection to capture the information required for substantial studies on cycling, transit and their relationship.

Why cycling or bicycles are good for the economy?

You saw that meme shared in social media where they say “why bicycles are bad for the economy”? There’s some humor there but it doesn’t necessarily convince many people to support cycling or biking over motor vehicle use.

Here goes one and note the logic:

“Cycling or bicycles are good for the economy because…it helps reduce car use/dependence. That means less dependence and expenses to fossil fuels. That means more money available to the household for more important stuff like food, homes and education.”

Can you come up with something like that?

Workers on bicycles crossing the Marcos Highway bridge from Marikina towards Quezon City.

On the importance of public transportation post-pandemic

I am sharing another article from Todd Litman that appear yesterday:

Litman, T. (2020) “Lessons from Pandemics: Valuing Public Transportation,” Planetizen, [Last accessed: 6/13/2020]

The article contains material derived from previous work by the author and provides a list (and links to) resources or references related to this topic.

Infographics: Infection Risk Classification of Transport Modes Post-ECQ

The infection risk table I posted a few days ago was improved into the following infographics: