Mobile technology as an alert system when women are feeling unsafe
This is made for the developed world and must be altered to an SMS format. Alternatively, it should be free - perhaps a negotiation with a telecoms company is needed. However, I have used it in Paris and it makes me feel safe - Circle of 6.
Circle of 6 is a smartphone app which allows, in a click, for 6 emergency contacts to be reached - a location can be sent, among other things, ensuring the person's safety and sense of safety.