This is excellent idea to be implemented here in Nepal. Sonika Manandhar and team are a great team working for mobility of the most vulnerable and marginalized population in the country. At the time when road and other infrastructure for visually impaired are at the worst, implementation of this idea would set an example in other sector and engrave the path for such interventions. In country like Nepal, this is certainly going to change their daily lives as they would hassle free for daily commute. I wish the team good luck for this endeavour.