Alarm sirens as horns / safety devices
Hello people. Can anyone please tell me if there is any provision in law to be allowed to use a siren type of alarm noise generated by say a bike alarm to be used as part of your horn mechanism.
One huge problem for bikes is that cars don't see or hear you very well. Having a loud siren type of horn as a last ditch attempt to show people where I am on the road would make a big difference.
What is the law regarding
A: horn noises that could be classified as sirens like standard vehicle alarms
B:When is an air horn or electronic horn defined to be a siren and classified in section A
Thanks in advance