Transportation cyclist here. This is a great article, but it only indirectly touches upon one of the most effective tools a cyclist could have: an air horn. I have an Air Zound air horn and I feel much less safe riding without it. I'll often give a few toots before approaching an intersection to increase the chance that I am seen. And it has probably saved me from some major crashes when I lay down the horn on someon…
>> Some drivers unfortunately see horn use as hostility. I have dealt with a few road raging drivers who were very angry that I honked at them. You'll fit right at home biking in NYC since constant car honking is par for the course, although pedestrians will probably be pretty shocked when you let loose the Zound from the bike lane.
The one time I horned a pedestrian that comes to mind was like that. This guy was walking distracted and he decided to come off the sidewalk and directly into the bike lane without looking perhaps 20-30 feet in front of me. I was traveling around 15 to 20 mph. I hit the brakes hard but immediately knew I would still hit him unless he jumped out of the way. That's where the air horn came in. He jumped out of the way. No harm to him aside from perhaps some temporary tinnitus. Horn use was unavoidable in my view.