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Bus Rapid Transit

Public transport and urban design

Ke Fang's picture
As traffic congestion continues growing in urban areas, more and more cities have realized that investment priority should be given to public transport modes, such as metro trains, bus rapid transit systems (BRT) or buses, instead of personal vehicles. Simply put, public transport modes are more efficient than personal vehicles in terms of carrying and moving people around. However, international experiences also tell us that building more metro lines or putting more buses on the road alone may not be able to get more people to use public transport modes.

There are several non-transport factors, or urban design factors, that play a critical role in a traveler’s decision on their best travel mode. 
 
The first critical factor is density. As illustrated in a famous study done by Alain Bertaud, a former World Bank staff, density is the primary reason why 30 percent of daily trips are carried out by public transport in Barcelona, but only four percent in Atlanta. Barcelona is about 30 times denser than Atlanta, so it is therefore much easier to provide same level of public transport services in Barcelona than Atlanta.

One lesser-known factor is accessibility. Just having a high population density may not guarantee more people to use public transport.

Want Healthy, Thriving Cities? Tackle Traffic Safety First

Jose Luis Irigoyen's picture


Every year, more than 1.2 million people die in traffic crashes worldwide, equivalent to nearly eight Boeing 747 plane crashes every day. As developing economies grow and private car ownership becomes more mainstream, the number of associated crashes and fatalities will continue to rise.
 
The challenge of traffic safety often flies under the radar in cities, where the social and economic challenges of accommodating growing populations take precedent. Without meaningful change, however, the World Health Organization (WHO) projects that traffic crashes could become the fifth leading cause of premature death worldwide by 2030. This takes a particular toll on cities, which are already home nearly half of global traffic fatalities. City leaders must prioritize traffic safety measures to ensure that their citizens have safe, healthy and economically prosperous cities to call home.
 
With Urban Growth Comes Traffic Safety Challenges
 
While there are a number of factors that contribute to traffic crashes, two of the primary challenges are rising motorization trends in cities worldwide and the issue of road equity: the most vulnerable road users, including pedestrians and cyclists, are most impacted by traffic crashes. On top of that, these users, typically lower-income, don’t always have the power or capacity to create the necessary changes.
 
The number of privately owned cars on the road hit the one billion mark for the first time in 2010. If we continue business-as-usual, that number will reach an estimated 2.5 billion cars by 2050. All of these new cars will lead to an increase in traffic congestion in cities worldwide, increasing the probability of traffic crashes and resulting fatalities.

Bogota: TransMilenio’s overcrowding problem and a professor's solution

Jean Paul Vélez's picture
Also available in: Español
 
Follow the authors on Twitter: @jpvelez78@canonleonardo and @ScorciaH
 
Why TransMilenio isn't working (Spanish)

A few weeks ago, a video entitled “Why doesn’t TransMilenio work?” created a huge buzz among the residents of Bogota. The graphically impeccable video, produced by local Colombian firm Magic Markers, proposes solutions for addressing the systematic overcrowding problem faced by the city’s Bus Rapid Transit (BRT) system known as ‘TransMilenio’. It is based on research conducted in 2012 by a university professor, Guillermo Ramirez, and his students. The video has been watched on YouTube over 700,000 times and has been discussed by important national media outlets. 

As urban transport experts and Bogotanos interested to see TransMilenio improved, we wrote a blog post in Spanish breaking down the video between the points with which we agree and the points with which we disagree, and circulated it in social media to further promote the debate. We are now sharing that blog post in English as we believe it offers some interesting discussion points about the challenges of high capacity BRT operations that are relevant in a broader context.