Sidewalk survey · Ortigas Ave, Pasig

Ortigas Ave → The Medical City

One phone video, measured metre by metre with two off-the-shelf vision models and no training. Each strip below is one attribute of the sidewalk, laid along the metres walked; every measurement is filed at the spot it describes, not where the camera stood.

Along the walk

Hover or drag across the strips to see the spot. Arrow keys step a metre (Shift: 10).

What stood out

Placed on the map automatically. GPS and the phone's motion tracking put this walk on the north side of Ortigas Avenue, heading east from the Meralco Avenue corner to the footbridge by The Medical City: 393 m in 268 s, fitted to within 2 m on average. The street falls about 9 m over the walk (a 2.2 to 2.8% grade), and the phone's barometer agrees. That is gentle enough for a wheelchair. The phone pointed about 7° above the horizon, so the top third of most frames is sky.

A tight start (0 to 25 s). Around the Meralco Avenue corner the walk starts on asphalt by the traffic signal. It then follows a strip only 0.5 to 0.9 m wide, squeezed between overgrown plants, a utility box and bollards on one side and motorcycles queuing in the green bike lane on the other.

The best stretch so far (25 to 133 s). Along a long fence, the sidewalk is 2 to 2.5 m wide and almost continuous (97% of frames), and trees lean over it from behind the fence. They fill only about 12% of the space over the path, though, and at 10:40 the sun stood high in the south-southeast, casting their shadows back behind the fence: about 70% of this stretch was in sun. There is no railing between you and traffic, and water lies along the curb at 75 to 100 s. Street lights and sign posts stand along the curb; they leave the walking zone clear, so they no longer count as obstacles.

Narrower and busier (133 to 232 s). After the midpoint the sidewalk narrows to 1.5 to 1.8 m of cracked concrete, with motorcycles streaming past at the curb. Almost all of it was in sun (88%). Near the end, trees planted in the sidewalk have lifted their pits (218 s), and painted stalls and a kiosk take part of the width (222 to 226 s).

Crossing L. Gardner Road, then a squeeze (234 to 268 s). The walk crosses the mouth of L. Gardner Road, about 25 m of broken asphalt with cars turning in and no marked crossing in view. On the city map these frames count as a crossing, not as sidewalk. Past it, under the footbridge by The Medical City, the stairs and their column take most of the sidewalk, leaving about 0.8 m at the curb beside the bike lane. The walk ends just as it reaches the footbridge, so the bridge's cover shows only in the last few metres (13 to 21%).

About the 250 "marks". They came from a hand brushing the app's Mark button, not from deliberate presses, and are ignored. The app now needs a press and hold.

Firming it up

    How each strip is measured

    StripHow it is measuredTrust
    Every metre as a table
    PositionTime of dayUnderfootClear widthWhole sidewalkGap to trafficRailingIn the wayOverhead coverSunSlope