The Damaging Effect of Traffic Congestion on Kolkata’s Economy
What happens when it takes two hours to cover a distance of 13.9 kilometres (8.6 miles) in non peak traffic hour on a working day? The city in question is Kolkata, the mode of transport moving at an average speed of 6.95 km per hour is a four wheeler and the year is 2012. The challenge is to get to the destination (Howrah station) from Netaji Subhash Chandra Bose Airport in less than 2 hours.
According to Google maps, the distance of 13.9 km (8.6 miles), the shortest route between the source and destination should take 26 minutes and through the longer route (9.2 miles) should take 32 minutes. It should take 2 hours 46 minutes to walk that distance. Who would prefer walking 8 miles? But would you not give it a thought if it takes you 2 hours to cover 8 miles in the best available mode of transportation!? In that case, would you say that there is something wrong with Google Maps’ estimation or would you say that it didn’t consider the traffic before estimating? No, the point is not that. The world relies on Google Maps and knows that it is fairly accurate though for the time being it has removed the feature of estimating the time during peak hour traffic. Anyways, this post is not about Google Maps. A quick narration on what happened that day. And knowing our everyday unruly adventures on Indian roads/ highway, our civic sense, and unmanned traffic signals, I can say with a certain degree of conviction that this is what happens almost every other day in Kolkata or in any other busy city in India. I landed safely and on time at Netaji Subhash Chandra Bose Airport, Kolkata. After I collected my baggage, I headed to the taxi stand. I was relaxed as I had exactly 2 hours (which according to Google estimate was more than enough and according to my estimate, was adequate) to make it to the Howrah station to start the next leg of my journey on train. Our estimates would have been right in a perfect world but not in the real world complex scenario of congested Kolkata traffic and its poor road conditions.
That day I had already missed my train and was yet to reach the railway station. Sitting at the back seat of a cab/taxi, a question popped up in my mind: Is “getting stuck by n more hours than the estimated” in the traffic affecting Kolkata’s economy and hence India’s economy? And by how much are we losing due to the hours lost by in the traffic?
Let's look at few facts and figures and plug in some numbers there to see by how much Kolkata is losing in traffic congestion, afterall time is money!
Estimated time by Google’s shortest route- 26 minutes
Actual time taken by taxi (the driver took shortest route) - 180 minutes
Population and GDP (2011)
Kolkata’s GDP (by PPP) - $150 billion [1]
Population of Kolkata (including city and suburbs) - 15.5 million
GDP per capita of WB - $875 (Kolkata’s GDP per capita wasn’t available)
Paid and Unpaid hours of Work
Indians on an average work for 8.1 hours a day, out of which 5 hours is for the paid work and 3.1 hours is for unpaid . OECD in their calculation of unpaid [2]work has included cooking, cleaning and shopping. Paid hours worked per person per annum @ 5hrs a day - 1825 hrs
Hence GDP per hour - $875/1825= $0.47
Labor Force (2011)
Data on the number of employed in Kolkata couldn’t be found. India’s labour force is 487.6 million, which is 40.6% of the total population. Let us assume that 40.6% of Kolkata population or 6.2 millions contribute towards the economic activity and GNP of the city.
Distance commuted on an average on Indian Roads
India has “4km of roads per 1000 people, which includes both paved and unpaved roads” compared to “United States which has 21 kilometres of roads per 1000 people, while France about 15 kilometres per 1000 people - predominantly paved and high quality in both cases[3]”.
Hence, on an average 3500 people were commuting that day on that 13 km stretch of road, mostly by motor bikes or two wheelers, four wheelers (including buses).
40.6% of those 3500 commuters, which equals to 1421, are involved in some kind of economic activity and gets paid everyday at least for 5 hours of work.
Value of Time lost in Traffic
Time lost by every commuter in 13.5 km stretch = 90 mins (1.5 hours)
Total unpaid hours of 1421 commuters = 2131.5 national hours on one way commute in a day is lost
Hence, GDP lost by 1421 commuters in a day if they are stuck for 1.5 more hours = $1001. In 365 days these 1421 commuters lose $3, 65,658 in just 1.5 hours in a day by commuting on jam-packed 13.5 km. And if 6.2 million people of Kolkata who contribute towards the economic activity get caught for 1.5 hours more in the traffic in a day then how much does the city loses- 6.2 million X $0.47 X 1.5 hrs= $4.3 million lost by a city in a day because of poor and age old infrastructure.
Conclusion
You can argue that the theory, assumptions and the numbers are flawed but the question here is don’t we deserve a better infrastructure (roads) when we are playing a crucial role in the development of a city, paying taxes and eventually contributing towards the GDP of the country? I feel that the most of the Indian cities (consider Kolkata here) even though are thriving are trapped inside some contradictory circumstances- industrial growth rate is high- good reason to attract entrepreneurs and talented workforce. Puntos, Polos, Ritz have replaced the Marutis and there is a strong demand for BMWs and Audis. And the irony is that the roads that are supossed to support the day to day economic activity of the city are old, creaky and stingy- could it be a reason good enough to drive away the entrepreneurs and talented workforce?




