the long now of philippine governance

I've been silent the past few weeks. I've been busy at work so that's the natural cover although I suspect that I've been quiet because of the turmoil back home. When I started this project, I purposely decided to avoid commenting on current political issues. I felt there were and are enough voices out there, enough pundits dealing with Philippine politics.

I'm not short of my own opinions - or attention - but I'd rather not use this blog as a forum. Like I said, there are many other places on the web.

I will say this of the matter (having been part of EDSA 1 and 2, and witnessed 3) and then move on: Our current and past political crises are symptoms of a deeper movement. We long for a change in governance -not governments, but governance -and of culture.

It is a struggle we've been at since colonial times. From and end to patronage politics, to a shift to rule-driven rather than personality-driven campaigns, to a search for professionalism in the bureaucracy and the military.

To that end, the deeper movement is positive. Changes in governance and culture take much longer to happen. Over several generations. Though it is easy to be discouraged by the distemper of our times (or betrayals, as Prof. David puts it), the comfort is that chaos on the surface is generated by the friction in the deeper layers.

Will our governance and our culture change? Yes. Eventually.


best of the city
people's choice

I've been sitting on these results for a little too long now. Finally, here they are: your choices for the best urban places in the city.

(Voters were allowed multiple choices so the percentages will not tally.)

Best Street: Adriatico in Malate (42.9% of votes)
Runners up: Binondo/Ongpin St. (30.8%) and Roxas Boulevard (14.3%)

Best District: Makati CBD (50%)
Runners up: Binondo/Ongpin St. (30.8%) and Quiapo (14.3%)

Best Open Space, Park or Plaza: Greenbelt Park (37.5%)
Runners up: Intramuros Walls, American Cemetery and UP Sunken Garden (all tied at 28.5%)

Best Market or Mall: Greenbelt Mall (61.5%)
Runner up: Tiendesitas (23.1%)

Best Temporary or Day Market: Salcedo and Legaspi Weekend Markets (63.6%)

Best Campus: UP Diliman (64.3%)
Runner up: CCP Complex (50%)

Best Building: San Agustin Church (42.9%)
Runner up: Ayala Museum (28.6%)

Let's do this again next year!


green infrastructure
rethinking our streets (3)
updated with numbers

Image credit: A new community redevelopment project in Seattle includes a natural drainage system.
From Stormwater (The Journal for Surface Water Professionals).
The only time we realize that our streets are actually part of a larger-scale ecosystem is during a heavy downpour when storm water decides to use our streets as temporary rivers.

Engineers deal with storm water the same way they deal with any input-output problem. The equation is simple: to cope with the incoming volume, increase the throughput so that you get maximum output. That is the dogma -and that's how we've been dealing with floodwaters on our streets ever since: Move it out as fast as possible to the nearest body of water. Big storms require big drains and a bigger the flood control system. (Some of our widest roads have five meter diameter pipes as stormwater drains.)

(The biggest example of this thinking in Metro Manila is the Manggahan Floodway which channelized portions of a river and then built a long canal to drain the low lying parts of the eastern metropolis into the Laguna Lake.)

The drain-the-waters-as-fast-as-you-can approach, works, to a certain point. It fails if: 1) the input volume is bigger than what you designed the system for; or 2) if the throughput gets clogged.

The throughput does get clogged. Often. Which requires a lot of maintenance, a lot of keeping the channels clean -of building even bigger pipes to drain the water. And every year, we get the same complaint: trash clogs the drainways. At the same time, we've been paving over more and more of our land area causing more water to run off into our streets and overwhelming our flood control systems.

Year after year, the floods get worse (especially the flash floods on EDSA and the Buendia-SLEX intersection) and year after year, the proposed solution is the same: more maintenance, or proposals for bigger flood control projects.

Time for a rethink.

Natural systems approach water differently. Nature prefers to slow down the water, allowing it to pool around tree roots, slowing the flow with grass, collecting it in seasonal ponds and generally letting it percolate into the soil. This has two effects: 1) it reduces surface water runoff so the creeks and waterways don't get overwhelmed and 2) it preserves precious topsoil, keeping it from getting washed away.

Engineers have realized that the environmentalists do have something to say and have made the connection that speeding up water is ineffectual and damaging to the environment. (You can draw a straight line cause and effect from the flood control projects in the Mississippi river basin to the tragedy of New Orleans.)

They have also begun to rethink how to handle water runoff on streets and roadways. Yes, you want to drain the roadway, but it doesn't mean channeling the water out to the nearest body of water. It is better to hold and percolate -not shunt it out but allowing it to recharge the groundwater aquifers. (And yes, our aquifers do need recharging. See this pdf report -2.6mb).

So, landscaping -which was used primarily as ornamentation (and apparently still is) is now seen as an approach to handling water-runoff. Instead of trying to drain the rainwater off into pipes, landscape systems (like shared tree wells, permeable pavements and bioswales) hold the water locally and drain it into the soil rather than draining it into a flood system. The landscape becomes a natural flood control system. (Guess what, it also reduces water pollution -by eliminating nonpoint source pollution and by using the soil to filter the water before it gets to the aquifers.)

So the clean-and-green proponents and the save-the-pasig movement need to sit down with our traffic and the flood control engineers to re-think the way our streets deal with water.

Well designed streets, which reconceptualize the network of roads as green infrastructure -so that it not only carries vehicular traffic but also protects the environment, will do more than just provide us with grassy medians, sidewalk trees or flower beds. Well designed streets will probably save our cities and revive our dying rivers and lakes.


A conversation with a friend led me to running some number scenarios of what the stormwater runoff volume for Metro Manila might look like, and though the math is rudimentary, the numbers are startling:

If you assume that 30% our megacity's land area (636 sq.km.) is devoted to pavement (roadways) and 5% devoted to waterways (very generous assumption), then you would get:
  • 191 sq.km of roads
  • 32 sq. km. of waterways
If a storm dumps water at the volume of 10cm per hour (that's about 4 inches of rain -not so spectacular for the metro), the 191 sq.km of roadways would produce a runoff volume in the order of 190.8M cubic meters. (And we're only looking at the roadway runoff -and naively assuming that nothing else (parking lots, driveways, etc.) drains into the roadways.

Assume, again rather generously, that your 32 sq.km. of waterways has an average depth of 2 meters -then the total carrying capacity of the waterways would be 63.6M cubic meters -or roughly just 1/3 of the runoff our roadway will produce. (And we're assuming that the throughput is at 100% -no trash or blockages.)

That means our waterways will have to drain completely every 20 minutes if it is to absorb and remove just 1 hour of (10cm) of stormwater runoff from our streets!

If only 50% of our streets (paved areas) had some natural drainage/bio retention system -of say 1M depth holding capacity for every square meter of street, we could absorb half of that runoff (95.4M) locally. No need to wait for the waterways to drain.

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