turn signal

I agree with you. Lots of accdents happen because drivers don't use turn signals. They should use it because its useful for everyone. I think that driver didn't use turn signals because he/she is lazy and don't care about other people lives :D

yes , they should use them. But also bikers should use their hands to tell other people on the road where they are going , in the Netherlands , cars have to wait for the bikers most of the time but if those bikers dont say where they are going they let the cars stop , waste of fuel. But they also cause little traffic jam and if there are enough of those little thingies the whole city is 1 big jam. huge waste of fuel! so everyone on the road should tell where they are going!

I totally agree with you. Drivers should always use their turn signal. It is made in order to avoid accidents. If all drivers follow do and don'ts on the road, then road accidents will be lessen.