There is a cycling event on the 20th of May, that will happen in many cities, including Singapore:
"The Ride of Silence (rideofsilence.org) was created in honor of those who have been injured or killed while cycling on public roadways.
The ride of Silence is also a way for us, cyclists, to raise cycling safety awareness in Singapore."
Ride of Silence Singapore
Venue: Merlion Park
Date: 20 May at 7pm
Dress in white, and wear your helmet
The ride will be 19Km, slow paced, and going through the following places: Merlion Park, City Hall, China Town, Holland Village, Orchard, Dhoby Ghaut and finish at Merlion Park. (The route is pending Police approval)
You can join the Facebook group for more info.
Otterman has the newspaper interview at his site.