The 25 Cities Pilipinas concept is based from the 250 US Cities concept, which is the source of a similar project called Brasil 250 Cidades [Brazil 250 Cities (in Portuguese)]. And yes, this is another way to improve OpenStreetMap data (and “routability”) in the Philippines, since navigation devices are going to be as popular as mobile phone in the foreseeable future, which means that 2012 won’t happen.
It’s simple. Find a list of cities in the Philippines, get the 25 most populous, don’t forget the reference points for each city (Kilometer Zero for Manila, the Quezon memorial Circle for QC, the intersection of Ayala Avenue and Paseo de Roxas in Makati, etc.) and see if they’re “connected” to each other.
Here are the top 25 most populous Philippine Cities (according to the ever-reliable information bodega):
Note: following format below is Name of City [Name of Province] (Starting point)
- Quezon City (Quezon Memorial Circle)
- Manila (Kilometer Zero)
- Caloocan (Bonifacio Monument)
- Cebu (Fuente Osmeña)
- Dasmariñas [Cavite]
- Cagayan de Oro
- Las Piñas
- General Santos
- San Jose del Monte [Bulacan]
- Calamba [Laguna]
Eventually, this project will cover 50, then 75, then 100, then most, if not all cities of the Philippines.
Why 25 cities? First, have you ever heard of the “Snowball Effect“? (Clue: start small, then get big.)
Any why are you that ambitious? Because I have the audacity.
First, let’s try Cebu (Fuente Osmeña) to Davao (intersection of Bolton and San Pedro streets). (Since CloudMade’s routing machine doesn’t “pass over” ferry routes, I’ll use YourNavigation.) Result: Routing was a bit “stuttered” (see here) How about Cebu (same reference point) to the Samar end of San Juanico Bridge? It should have passed through Ormoc, that’s for sure. So, we need some improvements when it comes to routing.
The other goal of this scheme is add, then complete the Pan-Philippine Highway and the Strong Republic Nautical Highway networks on OpenStreetMap. The only portions that need to be “connected” for the former are in Ilocos to Nueva Ecija (via Cagayan Valley), between Albay and Samar, Southern Leyte to Surigao City, and Davao City to Zamboanga City. For the Strong Republic Nautical Highway, this would be extremely difficult, as the said highway has three routes (Eastern, from Batangas City to Dipolog/Dapitan, via Mindoro, Panay, and Negros islands; Central, from Sorsogon to Cagayan de Oro, via Masbate, Cebu, Bohol and Camiguin islands; and Western, from Masbate to Surigao City, via Biliran Leyte and Panaon islands.).
I believe that this project will be done in nine months, if we have more contributors in the Philippines. A big shoutout to all our loyal and faithful OpenStreetMappers – both within and beyond the Philippines.
UPDATE 1: Made some minor tweaks to OSM data in Camiguin, Leyte (Ormoc area) and along the Davao-Bukidnon/Sayre Highway)