cables running the entire span of the BWSL. Toll and advanced traffic management systems were installed. For traffic enforcement, the bridge includes facilities for vehicles to pull over when stopped by enforcement officers or in the event of a breakdown. The bridge uses mobile explosive scanners for vehicles travelling on the sea link. Scans take less than 20 seconds for each vehicle with sensors above and below the vehicles. Over 180 cars can be scanned per hour by each scanner. The pillars and the towers supporting the bridge are protected by buoys designed to withstand explosions and collisions. These inflated buoys surround each pillar of the sea link to avoid any damage. The BWSL is insured by New India Assurance. The bridge tower and the control centres feature lightning protection, designed to protect the bridge monitoring, communication and power equipment from possible surges. Accessibility The BWSL is not accessible to pedestrians, and was not designed for them, according to the MSRDC's Satish Gavai. Two-wheeled, including motorbikes and pedal bicycles, and three-wheeled vehicles are prohibited as well. If caught, riders of such vehicles are subjected to a penalty of ₹2000. Criticisms The Economic Times criticized the delays and shoddy construction of Bandra–Worli Sea Link. First, the cost was not the projected ₹3 billion but actually cost ₹16 billion or about 23% cost overrun. Second, the project was 5 years behind schedule. The Financial Express has reported that even eight years after it was thrown open, the daily average traffic on the Bandra-Worli Sea Link — is smaller than a third of the original estimate. In fact, the increase in revenues over the years — 66.62 crore in 2010–2011 to 70.28 crore in 2011–2012 and to 71.04 crore 2012–2013 — has been fairly small. Latest statistics show the daily traffic count on the six-kilometre, predominantly cable-stayed bridge has dropped by over 11% in the past year, from 45,952 vehicles in 2011–2012 to 40,808 in 2012–2013. Over four years from 2009 to 2013, the daily vehicle count has dropped by over 16%. High toll is considered a major contributing factor to people finding the bridge, a less attractive commuting option. Also blamed are congestion towards Pedder Road for south-bound traffic and new flyovers that move north–south traffic on the eastern flank of the city, especially the 2.6 km Lalbaug flyover. There was also criticism directed at the crumbling road surface on the bridge