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Category Archives: Traffic Congestion
More flash floods due to intense downpours
Yesterday’s commute to our home was much longer than usual. It took us around 2 hours to get home even after leaving our office around 6PM. We experienced the wake or aftermath of congestion caused mainly by the flash floods and electrical damage to the LRT Line 2. The flash floods were caused by the intense rains after noon time. Floods were reported around Metro Manila but the one that ultimately affected us were the flood along Ortigas Avenue Extension near the Valley Golf gate. A long stretch was impassable to most vehicles. Our daughter got home 2.5 hours after her school dismissal when it usually only took around 1 hour on typical mid afternoon traffic along that corridor. The route we took home via Marcos Highway was affected by so many passengers getting stranded by the Line 2’s suspension of services between Santolan and Antipolo Stations. People occupied the traffic lanes of Marcos Highway as they positioned themselves to get to the next available jeepney or bus. Many chose to walk towards Ligaya and even Sta. Lucia Mall where many jeepneys bound for Rizal towns turnaround.
Line 2 suspended operations between Santolan and Antipolo Stations due to electrical damage sustained after a lightning strike damaged the catenary that transmitted power to the trains.
Passengers occupied the traffic lanes of Marcos Highway; many already tired from a day’s work or school. LRTA did not seem to have a plan or protocol to address such situations. Perhaps a call to bus companies or even the MMDA and LGUs like Antipolo, Cainta, Marikina and Pasig could have alleviated the situation of commuters? Antipolo did send vehicles to ferry passengers but they were not enough for the demand. These are exactly the situations that make public transportation unattractive to many people.
I hope we’ve (read: authorities including national and local governments) learned from this year’s weather-related problems and will address these so we can have less disruptions and losses in the coming years. It is predicted that we will have an intense El Niño so that means a long dry spell and also hotter days ahead. Perhaps nature’s message this year is that there’s enough water (from rain) and she is challenging us to come up with a system and facilities that will retain such amounts of water for the dry seasons?
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Bakit ma-traffic sa Ortigas Avenue? [Why is Ortigas Avenue congested?]
Bakit ma-traffic sa _______? I usually pose this question to my audience (e.g., students, trainees, etc.). In this post, I attempt to answer the question in the title using data we collected for Antipolo City’s Sustainable Urban Mobility Plan (SUMP). In one of the workshops, I asked the participants from the local government unit (i.e., from the various transport-related offices of Antipolo City) to try to determine the traffic mix for Ortigas Avenue Extension (also named Corazon Aquino Avenue from the Antipolo side) based on the traffic counts conducted at a station along the section that connected Antipolo with Taytay (at Tikling Junction). They also had performed vehicle occupancy counts along the same location so
These are just the numbers from the Antipolo surveys. Note that Ortigas Avenue Extension serves as a collector for the Rizal towns including Taytay and Cainta as well as for Pasig City. If we have similar numbers for the traffic mix and occupancies, then we can conclude that most people are actually using private vehicles with a surprising share being carried by motorcycles! That seems to go against the narrative that private vehicle ownership is low and that most people take public transportation. At least for the case presented here, that is not true, and we seem to be underestimating private vehicle use or preference.
Next: Bakit ma-traffic sa Marcos Highway?
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Traffic congestion due to flood control project – another interceptor for Cainta and Marikina
This week, another flood control project commenced that is expected to bring more congestion along Marcos Highway. The construction involves constriction along the corridor. That is, the capacity of Marcos Highway will be reduced due to the space required by the project. This meant the closure of U-turn slots and the reopening of the Marcos Highway-Felix Avenue-Gil Fernando Avenue intersection. There is significant traffic from Felix that turns left to Marcos Highway towards Quezon City. Instead of continuous, uninterrupted flow towards the former U-turn slot across Burger King, vehicles now need to queue for their turn to make a left turn. And this has led to long queues along Feliz Avenue that reaches Karangalan Village, even Vista Verde on a bad day.
Two lanes have been closed to give way to excavations and the installation of large pipes that will connect with the existing drainage in the area. This interceptor will eventually drain to the Marikina River and is expected to reduce flooding particularly in Cainta and Antipolo where residential subdivisions have endured floods during the wet season for many years.
The project will run for a year. That, of course, assumes that there will be no delays for whatever reasons might come up. The LGUs concerned including Antipolo, Cainta, Marikina and Pasig are cooperating with the MMDA to address traffic management issues.
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Commuting through floods
Yesterday’s rains were catastrophic. Reports stated that a week’s rains fell over a period of 2 to 5 hours, depending on where you were in the Mega Manila area. The resulting floods provided misery to people in flood-prone areas as well as those who had to go through the floods on their commutes to their homes. Here are photos from my commute going home yesterday. I relied on Waze for the shortest travel time and the app took me to flooded areas in Cainta. Perhaps it assumed my vehicle can safety navigate the floodwaters?
Flooded street in Gruar Subdivision in Cainta, Rizal
Flooded A. Bonifacio Avenue in Cainta, Rizal towards Taytay, Rizal. This is the main avenue through the heart of Cainta.
Flooded streets in the area leading to Hunters ROTC Street. These residential areas are prone to flooding and children commonly play in the floodwaters – certainly at risk from getting sick from whatever it is in the waters.
This is Ortigas Avenue Extension and on the way up to Antipolo. This area wasn’t flooded before and residents attribute the floods to the high-rise residential buildings and commercial development in the area. That’s actually a lot of run-off not absorbed by a drainage system that’s supposed to have been constructed with the developments. Did the local government of Taytay, Rizal make an evaluation of this before approving the projects?
Is there an end to this flood problem? Are the solutions really being implemented or, as we’ve learned the past so many months, are we being taken for a ride by our so-called leaders and agencies that are supposed to address these problems. People are supposed to be tired of the resilience story being peddled by politicians but the clamor seems to be in social media only and the real people who are lobbying for solutions have to contend with trolls who are also peddling their own narrative for their masters.
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Congestion Costing Reality Check, Part 1: Congestion evaluation best practices
Here’s a quick share of an article from Todd Litman on congestion evaluation:
Widely cited studies claim that traffic congestion is a huge and growing problem. They exaggerate. Let’s examine how to correctly calculate congestion costs and roadway expansion benefits.
Source: Congestion Costing Reality Check, Part 1: Congestion evaluation best practices
Travel time maps for Antipolo City
Yesterday, we facilitated a workshop for Antipolo City where technical staff of the city presented on the outcomes of various activities related to the formulation of a Sustainable Urban Mobility Plan (SUMP) for the city. One interesting output from one of the groups is this map showing the travel times within selected driving times with the destination being the Antipolo Shrine (“Antipolo Simbahan” if you will refer to the PUV signboards of those plying routes to Antipolo). The maps are the equivalent of travel time contour maps that can be generated with travel speed or travel time data.
While shown are driving times and assuming car use, similar maps can be produced for public transportation, motorcycles, bicycles and even walking. It is just a matter of collecting the data and plotting them. Alternatively, the data can probably be obtained or derived from sources like Google Traffic or Waze. Some effort, of course, is required in order to have more accurate maps especially considering the road network and traffic circulation. Note that the travel times indicated are also centered on the Antipolo Shrine, which for presentation purposes was used to represent the center of the city. Other maps can be produced in aid of planning travel and transportation for the purposes of the city (e.g., how long it takes between Antipolo and Cubao for a regular commute, etc.).
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On the reduced traffic due to the energy crisis
The past weeks have seen traffic reduced along my usual routes for my commute between my home and workplace. This could be attributed to the energy crisis as, apparently, many have chosen to plan their trips and use other options other than private/personal transportation for their travels. The reduction in traffic is probably due to reduced numbers of private cars and motorcycles as people cut down on unnecessary trips. Of course, most schools are off at this time of the year so that means a significant number of trips are off the roads (and rails in the case of Metro Manila).
My travel time is only about 60 to 70% of the usual during peak hours. And about half during off-peak. That is a significant reduction in travel time and perhaps translates to not just reduced fuel consumption in general but also reduced emissions as well. On weekends, I also observed that there are less motorcycle traffic to and from Antipolo where I reside. I am referring to the groups who usually have their recreational rides during weekends. Did bicycle traffic increase? My observation is that there seems to be an increase for the weekdays but it’s about the same on weekends. Bicycles, after all, are not affected by the fuel price hikes. Perhaps people who can bike opt for the mode instead of their motorized vehicles? The only way to determine if indeed there were significant mode shift is to do surveys. But for now, careful observation not of traffic but travel times will suffice as proof of the easing of traffic due to the crisis.
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Congested Katipunan again
During the Christmas break, we were reminded just how Katipunan Avenue can be congested due to the trips generated by the institutions along it. These are mainly the schools such as Ateneo, Miriam and UP. Based on my observations and experiences over the past decades though (I started attending UP in the late 1980s), the main culprit is Ateneo with all the private vehicles it generates for its students in all levels (Grade School, High School and College).
What “normal” traffic looks like on a typical weekday along Katipunan Avenue
My commute during the break is usually under 1 hour (e.g,, 40-50 minutes). But during the times when there’s school, it’s always more than an hour (e.g., 75 to 105 minutes). Will the situation improve? Will there be a mass transit system along C-5 to alleviate the traffic conditions? We can probably hope so but it doesn’t seem to be in the near horizon right now. The Metro Manila subway, after all, is expected to be operational in the 2030s!
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On street transformations using AI
My social media feed is full of images generated by artificial intelligence (AI). The street transformations are generated using a variety of AI tools. I’ve tried Canva and Gemini in producing similar images of street transformations; an exercise I’ve included in my undergraduate and graduate classes for more than a decade now but using their sketching and software (CAD, Sketch-up, etc.) skills to do the transformations. The photos below show an example of transformation along the University of the Philippines Diliman Academic Oval using Google Gemini.
The original photo I took at the UP Academic Oval
The first attempt at replacing the orange bollards/barriers with something that blended with the campus.
The second attempt showing plant boxes instead of the fence in the previous photo.
I think it’s possible to have excellent transformations of whatever roads or streets there are. One just needs to prompt or instruct the AI well enough to obtain these alternative designs. While the transformations are nice though, context is still important. Many of the transformations circulating on social media call for almost all major streets to be transformed. (Kulang na lang pati expressway gawan ng transformation.) Advocacy is good but context-sensitive solutions require a more constructive and cooperative. It certainly can do without being combative or antagonistic.
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Ortigas Avenue Extension counterflow
One traffic scheme that has been constant along Ortigas Avenue Extension is the counterflow scheme. The scheme is applied in the mornings for westbound (outbound from Rizal) traffic. It has been implemented for as long as I can remember; perhaps since the early 1980s. One variant before was a form of “Buhos” where eastbound traffic is stopped for several minutes at certain intervals (6:30am, 7:00am, 7:30am and so on), and westbound traffic is allowed to take all the available lanes during the periods.
Considering this scheme has been implemented for more than 4 decades now, there must be some measure of effectiveness there. It is an example where the directional distribution during the peak hours allow for such scheme to be implemented. Note that the scheme pre dates number coding and similar counterflow schemes elsewhere in other major roads in Metro Manila (correct me if I’m wrong).
The scheme though only shows that there should have been a better transport system put in place along the corridor, which has had a steady growth in travel demand. There should have already been a transit line along this corridor a long time ago. What happened? Was it not in the government’s radar? There was a line proposed and shown in various master plans before.
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