Caught (up) in traffic

Home » Research

Category Archives: Research

On phasing out cars in cities

I’m sharing another article on reducing car dependence. The article was referred to by the previous series that I shared recently.

Nicholas, K. (April 14, 2022) “12 best ways to get cars out of cities – ranked by new research,” The Conversation, https://theconversation.com/12-best-ways-to-get-cars-out-of-cities-ranked-by-new-research-180642 [Last accessed: 5/20/2022]

Here are a few excerpts from the article:

“Question: what do the following statistics have in common?

The second-largest (and growing) source of climate pollution in Europe.
The leading killer of children in both the US and Europe.
A principal cause of stress-inducing noise pollution and life-shortening air pollution in European cities.
A leading driver of the widening gap between rich and poor urban residents.

Answer: the vehicles on our streets, primarily the not-so-humble passenger car.”

also this:

“The research is clear: to improve health outcomes, meet climate targets and create more liveable cities, reducing car use should be an urgent priority.”

and this:

“To meet the planet’s health and climate goals, city governments need to make the necessary transitions for sustainable mobility by, first, avoiding the need for mobility (see Paris’s 15-minute city); second, shifting remaining mobility needs from cars to active and public transport wherever possible; and finally, improving the cars that remain to be zero-emission.”

You can also listen instead of reading it as it is a narrated article.

Articles on examining the role of the planning profession in both perpetuating and solving traffic congestion

Planetizen recently published a three-part series of articles examining the role of the planning profession in both perpetuating and solving traffic congestion:

Part 1: Brasuell, J. (April 13, 2022) “Planning and the Complicated Causes and Effects of Congestion,” Planetizen, https://www.planetizen.com/features/116834-planning-and-complicated-causes-and-effects-congestion [Last accessed: 5/17/2022]

Part 2: Brasuell, J. (April 20, 2022) “How Planning Fails to Solve Congestion,” Planetizen, https://www.planetizen.com/features/116914-how-planning-fails-solve-congestion%5BLast accessed: 5/17/2022]

Part 3: Brasuell, J. (May 12, 2022) “Planning for Congestion Relief,” Planetizen, https://www.planetizen.com/features/117153-planning-congestion-relief?utm_source=newswire&utm_medium=email&utm_campaign=news-05162022&mc_cid=34b0612d40&mc_eid=9ccfe464b1 [Last accessed: 5/17/2022]

I think these articles are a must read especially for students (and not just practitioners or professionals) and is sort of a crash course on transportation engineering and planning. It covers many concepts and learnings from so many decades and touches on certain programs that are most effective in reducing car trips. To quote from the article, the top 12 programs based on case studies in Europe are:

  1. Congestion Pricing (12-33% reduction in city-center cars)
  2. Parking and Traffic Controls (11-19% reduction in city-center cars)
  3. Limited Traffic Zones (10-20% reduction in city-center cars)
  4. Workplace Mobility Services (37% drop in car commuters)
  5. Workplace Parking Charges (8-25% reduction in car commuters)
  6. Workplace Travel Planning (3-18% drop in car use by commuters)
  7. University Travel Planning (7-27% reduction in car use by university commuters)
  8. University Mobility Services (24% drop in students commuting by car)
  9. Car Sharing (12-15 private cars replaced by each shared car)
  10. School Travel Planning (5-11% reduction in car use for school trips)
  11. Personalized Travel Planning (6-12% drop in car use share among residents)
  12. App-Based Incentives (73% – proportion of app users declaring reduced car use)

Are we ready to confront congestion and at the least start discussing these car trip reduction programs? Or are we content with the current discourse, which remains car-centric?

On walkability and walkability scores

I’m sharing a couple of articles on walkability and walkability scores. The first one actually points to the second but provides brief insights about the concept of walkability while the second is a more detailed article on the findings of a study on walkability.

Ionesco, D. (May 4, 2022) “Walkability Scores Don’t Tell the Whole Story,” Planetizen, https://www.planetizen.com/news/2022/05/117075-walkability-scores-dont-tell-whole-story?utm_source=newswire&utm_medium=email&utm_campaign=news-05052022&mc_cid=c04e3e4dc0&mc_eid=9ccfe464b1 [Last accessed: 5/7/2022]

To quote from the article:

“if cities truly want to be pedestrian-friendly, they need to think beyond the sidewalk…”

The second article is from late April:

Gwam, P., Noble, E. and Freemark, Y. (April 28, 2022) “Redefining Walkability,” urban.org, https://www.urban.org/features/redefining-walkability [Last accessed: 5/7/2022]

To quote from the article:

“To create a more comfortable walking experience, our research points to a few steps DC planners and policymakers can take to increase racially equitable walkability across the city:

  • expand tree cover in the densest parts of the city,

  • increase nonautomotive modes of transportation in central areas,

  • reduce noise pollution,

  • support more equitable access to key resources, and

  • prioritize road design that limits the need for police traffic enforcement.”

While the article puts emphasis on the topic of racial equity, such concept can easily be adapted and adopted for our purposes. For one, it could be interpreted as being inclusive if one is not comfortable with the term “race”.

Don’t miss downloading the technical appendix of their report. This will be very useful to researchers, practitioners and advocates of active transport.

Trivia: Why are school buses yellow?

Have you every wondered why are school buses yellow? Of course, the main reason is safety related. Here is a short article on why the color was chosen for school buses:

Ganninger, D. (August 20, 2020) “Why are school buses yellow?” Medium.com, https://medium.com/knowledge-stew/why-are-school-buses-yellow-2f2b063739d4 [Last accessed: 3/20/2022]

To quote from the article:

“The original color was called National School Bus Chrome but has since changed since school bus chrome contained lead in the pigment. The color was adopted because black lettering was easy to see in the early morning hours and during the late afternoon. Another reason it was chosen was because the color yellow is seen quickly in someone’s peripheral vision.”

Articles on air crash incidents

I posted earlier this month about references online on railway crash incidents. This time, I am sharing a site where you can find articles about air crash incidents. There are many interesting articles here including some of the most well-known incidents that involved pilot error, weather-related crashes and those involving aircraft defects or issues.  There are also articles here about terror attacks that led to air crashes.

https://admiralcloudberg.medium.com

I have shared a few of his articles before including one on the Concorde crash and another about the ill-fated Malaysian Airlines Flight 370. I have found these articles to be very interesting as the manner of writing is investigative and evidence-based. I have myself been in several near incidents, which I have related in this blog.

Paper: Estimation of Transportation Energy Demand of the Philippines Using A Bottom-up Approach

Our paper from a conference last year is finally published in an open access journal. The paper is on the “Estimation of Transportation Energy Demand of the Philippines Using A Bottom-up Approach.” Here is the abstract of the paper:

“In the years 2000–2016, the sector with the largest share of total final energy consumption in the Philippines is transportation with an average share of 34.2%. The study aims to estimate the baseline transportation energy demand of road, maritime, air and rail transportation modes in 2016 using a bottom-up approach. Through a bottom-up approach and utilizing available transportation activity and fuel economy/energy efficiency data from secondary sources coupled with primary road transportation activity and fuel economy and railway operations survey data, the baseline transportation energy demand of the Philippines is estimated to be 12,956.1 ktoe in 2016. A comprehensive estimation of transportation energy demand of the country using bottom-up methodologies with more detailed transportation activity and vehicle fleet of the different transportation modes is implemented. Finally, the collection and keeping of certain data that are critical in the estimation of the transportation energy demand are recommended.”

Here is the link to the paper, which is published in the Asian Transport Studies, Vol. 8, 2022: https://authors.elsevier.com/sd/article/S2185-5560(22)00004-9

TSSP 2021 [27th Annual Conference]

The Transportation Science Society of the Philippines (TSSP) held its 27th Annual Conference last November 19, 2021. Here are the poster and program for the conference:

Poster promoting the conference
The morning part of the conference mainly featured a roundtable discussion.
The afternoon part of the program included 4 technical sessions arranged into 2 parallel sessions.

I initially intended to write about the conference before it was held but things got pretty busy last week so this is a post conference write-up. The organizers also announced the final program late (i.e., just a few days before the conference proper) so it seemed sort of anti climactic to post about it. Nevertheless, the conference proceeded as planned and the TSSP has announced it will be posting the proceedings on their official website. It is not yet there but here’s a link to the TSSP official website: http://ncts.upd.edu.ph/tssp/

We need to do more to reduce transport emissions

I did some work on long term action plans on low carbon transport for the ASEAN region before. We were able identify many of interventions that were being implemented as well as those that can be done to reduce transport emissions. Such reductions for the region would ultimately contribute to alleviating global warming. Unfortunately, while ASEAN is a significant contributor to emissions, it pales in comparison to emissions by individual countries like China and the US. If these two and others in the industrialized world do not commit to reducing their emissions, all work will come to naught. Here is an article that serves as a pre-event write-up for COP26, a major climate summit that will be held in Glasgow in the coming days.

Transportation topics at the College of Engineering’s Professorial Chair Colloquiums

The College of Engineering of the University of the Philippines Diliman started holding its annual colloquiums (plural because each Institute and Department under the College are holding their colloquium mostly during this last quarter of the year).

The Department of Mechanical Engineering already held theirs last September. There were four topics on transportation: 1) Dr. Gerald Ko C. Denoga (Fernando N. Serina Mechanical Engineering Professorial Chair) presented on “Reduction of Light Rail Transport Energy Demand via Powertrain Modeling and Optimization of Operating Parameters”; 2) Dr. Juvy A. Balbarona (Renato M. Tanseco Professorial Chair) presented on “Timetable Optimization for Light Rail Transit (LRT 1)”; 3) Asst. Prof. Roderaid T. Ibanez (Team Energy Professorial Chair) presented on “Energy Demand Quantification and Conservation Strategies of Bus Transport Terminal Facilities along EDSA”; and 4) Dr. Edwin N. Quiros (Federico E. Puno Professorial Chair) presented on “Fuel Economy Results from Diesel engine Tuning for Steady Speed and Drive Cycle Operation”.

There is one transport related topic in the Department of Computer Science colloquium. On October 25, Dr. John Justine S. Villar (Dean Reynaldo Vea Professorial Chair) will be presenting on the “Efficiency Measurement of Domestic Ports in the Philippines Using Data Envelopment Analysis.”

The Institute of Civil Engineering will be holding its colloquium on October 28 – 29, 2021 with the following transport-related topics: 1) Asst. Prof. Rosabelle Louise A. Caram (DCCD Engineering Corporation Professorial Chair), “Utilization of Plastic Laminates in Asphalt Cement Mastic”; 2) Dr. Hilario Sean O. Palmiano (David M. Consunji Professorial Chair in Engineering), “Validation of a Customized Local Traffic Simulator (LocalSim)”; 3) Dr. Jose Regin F. Regidor (Ambrosio Magsaysay Professorial Chair in Engineering), “Pedestrian Safety Assessment Within Public Elementary School Zones in Quezon City using Star Rating for Schools”; 4) Dr. Ricardo DG. Sigua (Dr. Olegario G. Villoria, Jr. Professorial Chair in Transportation/Logistics), “Study of Motorcycle Rider Casualties at Signalized and Unsignalized Intersections”; 5) Dr. Karl B.N. Vergel (Quintin and Norma Calderon Professorial Chair), “Estimation of Transportation Energy Demand of the Philippines”.

Other departments have not posted yet about their schedules or topics yet. The Electrical and Electronics Engineering Institute (EEEI), for example, will have their colloquium this coming October 25 but have not posted a detailed schedule yet. They usually have several transport-related topics including those on traffic signals, vehicle detection, and bike share innovations.

More details and updates including registration to these colloquia may be found at the UP College of Engineering Facebook page: https://www.facebook.com/updengg

Papers from the Philippines presented in the EASTS 2021 conference

Here’s a list of papers from the Philippines presented at the recent 14th International Conference of the Eastern Asia Society for Transportation Studies (EASTS). The local society, the Transportation Science Society of the Philippines (TSSP), is affiliated with EASTS being one of the founding societies for what is now the mother organization with members across Asia.

I thought the list would be helpful to those who come to this site to look for research topics. I guess it’s that time of the year for many university/college students who are looking for topics for their thesis or dissertation. There’s a nice mix of topics in the list and shows what are the current topics students and faculty from the different schools are engaged in. Many appear to be from research projects, which are a natural source for technical papers being submitted, presented and published in conferences or journals.

The TSSP is holding its own virtual conference in November 2021. I will also share about that and the papers to be presented in that conference in a future post. Currently, they have not finalized the program and papers submitted are still being reviewed.