text: sun,kya tumne suna? hamare sheher mein naye smart traffic signals lag rahe hain, jo real-time data se traffic ko control karenge, bahut hi innovative hai na!bilkul, par mujhe lagta hai ki unhe pehle purani sadkon ko theek karna chahiye, warna smart signals ka kya fayda hoga jab sadkein hi kharab hain!