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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:
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COVID-19 Infection Risk Assessment of Transport Modes
I posted about the work we have been doing to assess the infection risk (i.e., spread of COVID-19) for various modes of transport considering the transition of many areas including the National Capital Region (NCR) to the General Community Quarantine (GCQ). The work was undertaken through the Transportation Science Society of the Philippines (TSSP), which is under the umbrella of the Eastern Asia Society for Transportation Studies (EASTS). Here is the outcome in the form of an “Infection Risk Classification of Transport Modes or Vehicle Types” developed by a core group of public transportation and road safety specialists among its members:
Note again that this is the product of a rapid assessment using the mentioned criteria and factors. It is a qualitative assessment and a quantitative one, given the data, would obviously been preferred. Moreover, this is an assessment for risk of infection rather than for road safety. In the “old normal”, for example, cycling and motorcycle use may have a higher risk in traffic given traffic mix, human behavior and lack of facilities to make these modes safe.
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Assessing the risk of infection from the transport safety perspective
My colleagues and I have been developing a risk assessment table for land transport modes to be submitted to the UP COVID-19 Response Team. We did a rapid assessment using mainly concepts from road safety.
The concepts are fairly simple. Risk assessment can be based on the likelihood of contracting the virus gauged from certain exposure factors. Exposure estimation may be quantitative where metrics are applied and data collected for the analysis. Estimation may alternatively qualitative based on experiences, perceptions, expert opinions, etc. but subject to logic (e.g., careful deduction). In road safety, for example, these factors may be defined as three: time, distance and volume.
Time exposure can be determined using travel time as a metric. Longer the travel times mean higher exposures for a commuter. Higher exposure translate to a higher likelihood that a person may become involved in a road crash. Thus, a commuter traveling for 1 hour, one way, will have a higher likelihood of being involved in a crash compared to another traveling only 10 minutes even assuming that both use the same mode of transport. Applied to the risk of viral infection, longer commutes may mean people can have higher exposure to potential carriers of the virus.
Distance exposure can be determined using travel distance as a metric. Longer travel distances mean higher exposures for a commuter. Higher exposure again translate to a higher likelihood that a person may become involved in a road crash. Thus, a commuter with a travel distance of 10 kilometers will have a higher likelihood of being involved in a crash compared to someone traveling only 1 kilometer. Applying this to the risk of viral infection is similar to the previous case for time exposure even when assuming the same mode of transport.
Volume exposure can be determined using both the volume of vehicles as well as the number of passengers inside the vehicles. The more vehicles or people you have on the roads interacting, the higher the likelihood of one becoming involved in a crash. It can also be argued that riding public transport in high volume, mixed traffic makes a passenger have a higher likelihood of being involved in a crash. Again, applying this to the risk of viral infection, it should be easy to understand why physical distancing is necessary in vehicles as well as outdoors when walking or cycling. It should also extend to having less vehicles on the road to further reduce the likelihood of spreading the virus.
In the real world, we cannot isolate each factor from one another. Instead, we have to contend with all three combining to create various scenarios. Along expressways, for example, the volume of vehicles might be high and so are distances. Time exposure can be lower due to high speeds. Yet high speeds can contribute to increased likelihood of crashes. Meanwhile, traffic congestion has all the ingredients for maximizing the likelihood for crashes and, by extension, viral infection. Long commutes (by time and distance) plus high volumes of people and vehicles combine to create the worst case scenario from the perspectives of both road safety and infection, which are both public health issues.
Next – Why we should not return to the old normal…
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On urban planning resources or references for the pandemic
I am posting for reference this article compiling helpful references for urban planning in the context of the COVID-19 pandemic. Most of the references listed are based on the US experience and I am sure there is already a wealth of information coming from other countries as well including those that have been successful in mitigating the effects of the pandemic.
Brasuell, J. (2020) “Urban Planning Resources for COVID-19”, Planetizen, https://www.planetizen.com/node/109238?utm_source=newswire&utm_medium=email&utm_campaign=news-05142020&mc_cid=2e155996b6&mc_eid=9ccfe464b1 [Last accessed: 5/16/2020]
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On the proposed single bus route along EDSA
A friend posted this on social media as news came out about the government’s statement on its considering a single bus route for EDSA. EDSA, of course, is Circumferential Road 4 and perhaps the busiest road in Metropolitan Manila in terms of volumes of people and vehicles traversing this road. Public transportation along EDSA is mainly by buses and the MRT Line 3. Line 3’s capacity is already diminished despite the high demand for it mainly because of the number of train sets that are currently in operation. Buses, meanwhile, are split among the many routes converging along much of EDSA. These routes are shown in the map on the left where you can see the overlapping routes that have various end points.
Of course, it is best to read the Final Report of this study. That way, one is able to see the overall context for this section that is part of the concluding part of the report. I recall that the consulting team from UP was able to map the routes of other public utility vehicles like jeepneys and UV Express from that time. Perhaps the DOTr still has a copy somewhere? The NCTS Library in UP Diliman is currently closed so one may have to search the internet first for a copy of the study or perhaps snippets of it here and there. Perhaps related to this is a proposal to revive (or maybe the right word is ‘resurrect’?) the now defunct Metro Manila Transit Corporation or MMTC that used to dominate EDSA and other major roads in direct competition with the few private bus companies during its heydays as well as the jeepneys.
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On the DOTr GCQ Guidelines for Public Transportation – Road Sector
I just wanted to post, share and document here the DOTr’s Guidelines for Public Transport Operations for areas under General Community Quarantine (GCQ). The images are self explanatory so I will not discuss these nor will I offer a critique at this point. The following are public and posted on DOTr’s social media pages (i.e., Facebook) and have been shared and circulating among the public. I also post it here for future reference as I do to many other references like articles and infographics.
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Reference on Bicycle Facility Preferences and Increasing Bicycle Trips
There are many references that are free for downloading. These include the latest publications from the National Academies Press that includes outputs from the National Academies of Sciences, Engineering and Medicine. I am sharing here and posting also as a reference for me to return to a new publication from the National Cooperative Highway Research Program:
NCHRP Research Report 941: Bicyclist Facility Preferences and Effects on Increasing Bicycle Trips by Watkins, Clark, Mokhtarian, Circella, Handy and Kendall.
The research was supported by the American Association of State Highway and Transportation Officials (AASHTO) in cooperation with the Federal Highway Administration (FHWA).
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On car-shaming and reducing car use
Here is another article I am sharing (re-sharing?). I have seen or read a lot of posts on social media about how we should not go back to the car-centric traffic before the Enhanced Community Quarantine (ECQ) and its variations. I do agree with this point. However, I take reservation about how some people seem to be resorting to car-shaming rather than be more proactive and progressive about coming up with strategies and/or plans that I hope would be evidence-based or supported by valid data. As the article states, “it takes more than car-shaming to change car use”:
Jaffe, E. (2020) “It takes more than car-shaming to change car use”, Medium, https://medium.com/sidewalk-talk/it-takes-more-than-car-shaming-to-change-car-use-107e28ccb2cf [Last accessed: 4/29/2020]
A key message from the article: “People are most open to changing their travel habits during major life events, such as a move. But even a well-timed message isn’t enough.” Perhaps the opportunity is here now to reform our transportation system. But that will take a lot of will or effort from all sectors most especially the national agencies (e.g., DOTr, DPWH) and local governments who have the authority and responsibility to implement changes. These changes include the assignment of exclusive lanes for bicycles, public transport and logistics while restricting car use. There are also other elements that need to be in place as we transition into the so-called “new normal” and so there will be a lot going on among the sectors or parties collaborating or interacting for transportation. Hopefully, there are context-sensitive strategies that will be adopted and implemented in order for everyone to transition more efficiently and effectively. And as they say…life goes on.
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Public Transport Recommendations of the UP COVID-19 Pandemic Response Team
Here are the recommendations of UP COVID-19 Pandemic Response Team: “Effective Reactivation of Public Transport Operations for the New Normal through an Information Exchange Platform for Collaborative Governance”
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On public transport services during the pandemic
I’ve read a lot of discussions and recommendations pertaining to public transportation services (mainly its lack thereof) during the Enhanced Community Quarantine aka lockdown in most parts of the Philippines. Problem is, a lot of people had their mobility curtailed as most people did not have their own private vehicles (cars or motorcycles) to do essential trips (i.e., for groceries, market, drugstores, hospitals, etc.). These include so-called frontline workers, most especially those working in hospitals or clinics. Even the use of tricycles on a limited basis while adhering to physical distancing guideline was not allowed in many cities and municipalities. What do we really need to do now and in transition to address the lack of public transport services?
Here is a concise yet very informative article on transit:
Walker, J. (2020) “Cutting Transit Service During the Pandemic: Why? How? And What’s Next?”, Human Transit, https://humantransit.org/2020/04/cutting-transit-service-during-the-pandemic-why-how-and-whats-next.html [Last accessed: 4/23/2020]
Most of the points discussed and recommendations presented are applicable to our case in the Philippines. We should also accept the fact that we cannot go back to the situation prior to the ECQ, and that the new normal calls for a reduction in car use. Meanwhile, we still have to address the pressing issues and come up with a plan or maybe strategies for public transport that involved not just buses and trains but other modes as well like the jeepneys, vans and tricycles.
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Caught (up) in traffic 