地圖解：真係「梗有一間喺左近」?
全港不同地區的「七仔黑洞」
The importance of timing: How departure time affects your urban accessibility and journey time
Reachable area (aka isochrone), but for public transit, at different times of the days
When it rains cats and dogs, interactively
Interactive charts of rain and rainstorm warning signals patterns in Hong Kong