Poor surveillance, faulty speed detection cameras affect road safety Updated: Updated: Vadakara-Azhiyoor NH stretch one of most unsafe routes in Kozhikode district Share Article Vadakara-Azhiyoor NH stretch one of most unsafe routes in Kozhikode district Faulty speed detection cameras and declining surveillance by enforcement squads have resulted in the Vadakara-Azhiyoor stretch of the Kozhikode-Kannur National Highway becoming one of the most unsafe routes in Kozhikode district. The violation of speed limit continues to be the main cause of accidents on the stretch, where 15 persons were killed in the last two years. Local merchants from Kainatty, an area that witnessed the highest number of freak accidents on the route, said attempts to overtake heavy trucks and trailers during peak hours of traffic caused the majority of accidents.