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Bangalore's bus priority lane move people out of congestion

  • India
  • Urban mobility

Bengaluru has successfully completed one month of implementation of its path breaking ‘Bus Priority Lane’ project launched in November. Branded as ‘Nimbus’ (short form for ‘Nimma bus’ or ‘your bus’ in Kannada), the project involves providing an exclusive lane for buses between ‘Tin Factory intersection’ and ‘Central Sink Board’ intersection a 20 km corridor along the highly congested Outer Ring Road of the city. In the wake of falling interest in Bus Rapid Transit (BRT) projects in India, this is a welcome initiative and the current article looks at the implementation process and the performance of the corridor so far.


The city of Bengaluru has been facing increasing congestion over the years due to rapid growth in car and two-wheeler usage-which is the second highest in the country. It is estimated that the cost of time lost due to congestion in the city is aboutINR 380billion (38000 Cr). The 7.7 million (77 lakh) registered two-wheelers in the city cater to just 24% of the peak hour vehicular trips. This is despite the city having the largest fleet of city buses in the country operated by the Bengaluru Metropolitan Transport Corporation (BMTC) which caters to 37% of the peak hour vehicular trips with just 6,500 buses. Despite its efficiency in operations, increasing congestion has led to the average speed of buses dropping to about 10 kmph. What’s more, the low speeds also resulted in declining productivity of BMTC’s fleet i.e. the vehicle-km operated per vehicle dropped from 230 km per bus per day to 200 km per bus per day in just 4 years, resulting in an overall reduction in public transport availability in the city. The declining service availability combined with low speeds of available services has led to a rapid decline in bus usage in the city-contributing further to the increasing congestion.

Creation of Bus Priority Lanes:

In this context, the city of Bengaluru has taken up the bold decision to rationalise road space across modes in proportion to the people they carry. As a result, ‘Bus Priority Lanes’ i.e. an exclusive lane for the movement of buses has been created. The short term objective of this initiative is to provide high speed access for majority of the road users by taking buses out of congestion. In the longer term, faster travel time in buses can potentially attract private car and two-wheeler users to shift to buses. The idea has been conceptualised by BMTC with technical inputs from UITP India. It has later been taken up as a priority area of intervention by Government of Karnataka which mobilised various civic agencies including the Bruhat Bengaluru Mahanagara Palike (BBMP), the Municipal Corporation which is in-charge of the road infrastructure for bus priority lanes and the Bengaluru Traffic Police (BTP), which is in-charge of enforcing the exclusive bus lanes and realigning intersection traffic movements. Such was the level of interest in the Bus Priority Lanes (BPL) that the entire process from idea to execution has taken place within a span of three-months. The city has taken an infrastructure and investment light approach to BPL by using painted lanes and temporary bollards to create bus lanes which enabled such quick implementation. This is in sharp contrast to the many BRT projects in India which take multiple years to implement the project and sometimes lose interest in the success of the project in this process. However, it has to be noted that BRTs will also involve physical infrastructure like permanent barricade for bus lanes, shifting of utilities, creation on new bus stops etc. which weren’t part of the current initiative.

Impact of Bus Priority Lanes:

The implementation of the BPL involved proactive measures from BMTC, BBMP and the traffic police to address issues with street infrastructure, planning for bus services and re-engineering traffic flow. Once the teething issues were resolved, the bus lanes have resulted in an immediate improvement in bus passenger perception as observed from the surveys conducted by Citizens for Bengaluru (CfB) within one week from the commencement of the corridor. Now that the corridor has completed six weeks of implementation, a review of its performance before and after the BPL provides some insights into its performance.

The performance of BMTC buses in terms of their travel time, ridership and revenue were analysed using the data from Intelligent Transport Systems (ITS) of BMTC, to assess the impact of BPL. Travel time impacts were measured for the weeks of 29 September to 05 October i.e. two weeks before the BPL and 24 November to 30 November i.e. two weeks after the BPL. The ridership and revenue trends have been analysed for the past three months. The following are the key findings:

  1. 22% reduction in travel time and improved predictability:The corridor has seen a 22% improvement in bus speeds along the corridor i.e. the average time taken to traverse the corridor reduced from 89 minutes to 73 min. At the same time, the bus services have become more predictable for their users, particularly during the peak hours. While the average travel time before the corridor was ranging between 1 hour 15 min in the off-peak hour to 2 hours 30 min during evening peak, it has now come down to the range of 1 hour during off-peak hours and 1 hour 30 min during peak hours. The evening peak travel time of buses in one direction of the corridor i.e. tin factory to silk board has reduced by a whopping 60%
  2. Increased service supply along the corridor:Reduced travel time and improved predictability has enabled BMTC to improve the number of completed trips on the corridor from about 700 a day to about 1,770 trips a day i.e. a 150% increase. The increase includes additional trips completed which were getting cancelled earlier due to excessive congestion on the corridor and also additional trips scheduled by BMTC.
  3. Improved ridership and revenue:The combination of reduced travel time and increase in service supply has resulted in a significant increase in bus ridership along the corridor. The ridership has increased from 0.17 million (1.7 lakh) weekday passengers during the 1stweek of October to 0.52 million (5.2 lakh) passengers by the 2ndweek of December i.e. a 200% increase. During the same time, the weekend ridership i.e. Saturdays and Sundays has increased from about 30,000 passengers per day to about 90,000 passengers per day i.e. a 200% increase. While some of it is due to increase in service supply even the per-bus ridership has increased from 225 trips per bus per day along the corridor to 247 trips per bus per day i.e. a 10% increase. The increase in ridership has also contributed to an average increase in ticketing revenue along the corridor by 64% per day. The overall increase in revenue including daily passes etc. is yet to be evaluated.

These findings point to a significant success for the corridor from the point of view of bus users. Going forward, the city needs to build on this to ensure that the BPL, which started as a pilot project becomes a permanent fixture along the current corridor and even scale up to new corridors. This will require a host of improvements including smoother entry and exit to the corridor for various modes, better enforcement of bus lanes, improving traffic signal management for better throughput and updating bus timetables in accordance with the reduced travel time along the corridor. The success of the corridor certainly provides the right impetus for these longer term actions.

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