Will be talking about how the Pasig River and the communities on its banks can be revitalized, without building an expressway.
This sketch shows the Pasig River and its main tributaries (in blue) with approximate locations of major bridge crossings (in black) connecting opposite sides of the river. For such a long stretch of river, there is relatively fewer bridges spanning across it.
This lack of connectivity is shown in this spatial network graph, which shows how Metro Manila is separated into two halves by the Pasig River, and the clear lack of connectivity / bridge crossings between opposite sides.
Contrast this with how Paris is able to hold its central integration core in the middle, across the River Seine. This is because connectivity between North and South banks is strong, with a much higher number of bridge crossings spanning the river, relative to its in-city length.
This lack of pedestrian and vehicular connectivity across the Pasig tears the fabric of our urban core, and effectively creates a balkanized space that turns the Pasig River from what could have been a vital public space, into the back of the city.
This lack of bridge connectivity is compounded by the presence of large impenetrable tracts of exclusive/gated land use along its banks. Be it in the form of Institutional Estates: Malacanang, PUP, or Industrial Brownfield: Pandacan, etc., or privatized enclaves.
It is these same large tract enclaves that hold the key in converting the Pasig River Banks, as they can be rezoned, reparcelled, and connected together by greenways and new bridge crossings that let people and cycles connect previously separated communities.
One can argue that, the cost to acquire right-of-way to purchase these parcels for rezoning, and the volume of concrete to build these separate pedestrian/cycling bridges- not to mention the new housing stock it would provide, would cost just as much, or even cheaper than PAREX.
We need to reimagine PAREX. This is an opportunity for redevelopment to be more inclusive and equitable.

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More from @leandrop0x

2 May
Expounding on the macro analysis of the Pasig River banks. Burnham's original plan was for riverside promenades and streets to activate its edges. These were sacrificed to make way for the industrial uses that relied on the river for access and discharge.
One can see how these large-grained, leftover industrial parcels are now hemmed in by the dense, fine-grained and informal fabric that has evolved over time.
One reason why the PAREX is a tempting solution, is described by 'Implant-bypass urbanism' (Corpuz, 2000; Shatkin, 2008). By providing an expressway on the river, it allows these hemmed-in parcels to bypass their surrounding fabric, and allows high-end development to implant.
Read 7 tweets
24 Feb
The real EDSA revolution started back in the 50s. This is a global spatial integration graph of Metro Manila in 1967. It shows how the corridor defined by EDSA has already overtaken the old core of Manila as the integration core of the fast growing metropolis.
What was just a circumferential road meant to bypass through congestion within the core, evolves to become the spine of the metropolitan region instead. From center to edge. I wrote about this for my MA dissertation, but I felt my discourse was just applying a narrative lens.
Space syntax helps quantify these patterns, even before they become obvious.

This graph shows that in 1967, land along the corridor of EDSA was already set to boom. Land owned, and to be developed by the private heirs/beneficiaries of the encomienda system.
Read 6 tweets

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