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How does accessibility re-frame our projects?

Tatiana Peralta Quiros's picture
The increasing availability of standardized transport data and computing power is allowing us to understand the spatial and network impacts of different transportation projects or policies. In January, we officially introduced the OpenTripPlannerAnalyst (OTPA) Accessibility Tool. This open-source web-based tool allows us to combine the spatial distribution of the city (for example, jobs or schools), the transportation network and an individual’s travel behavior to calculate the ease with which an individual can access opportunities.

Using the OTPA Accessibility tool, we are unlocking the potential of these data sets and analysis techniques for modeling block-level accessibility. This tool allows anyone to model the interplay of transportation and land use in a city, and the ability to design transportation services that more accurately address citizens’ needs – for instance, tailored services connecting the poor or the bottom 40 percent to strategic places of interest.

In just a couple of months, we have begun to explore the different uses of the tool, and how it can be utilized in an operational context to inform our projects.
Employment Accessibility Changes in Lima,
Metro Line 2. TTL: Georges Darido

Comparing transportation scenarios
The most obvious use of the tool is to compare the accessibility impacts of different transportation networks. The tool allows users to upload different transportation scenarios, and compare how the access to jobs changes in the different parts of the city. In Lima, Peru, we were able to compare the employment accessibility changes that were produced by adding a new metro line. It also helped us understand the network and connectivity impacts of the projects, rather than relying on only travel times.

Understanding spatial form
However, the tool’s uses are not limited to comparing transport scenarios. Combining the tool with earth observation data to identify the location of slums and social housing, we are to explore the spatial form of a city and the accessibility opportunities that are provided to a city’s most vulnerable population.  We did so in Buenos Aires, Argentina, were we combined LandScan data and outputs from the tool to understand the employment accessibility options available to the city’s poorest population groups.

A major African step to make sustainable transport a reality

Roger Gorham's picture
Promoting Sustainable Transport Across Africa

The term “sustainable transport” evokes a wide range of images and perceptions among transport professionals and lay people alike. For some, it means a range of technology solutions – from diesel particulate filters to ebikes, Copenhagen wheels, or buses running on compressed natural gas.  For others, the term can refer to changes in behavior, like improving the way vehicles are maintained or driven, or efforts to carpool.  For yet others, the term implies even more radical changes, like wholesale shifts in the way cities are designed, and/or smart city approaches that use ICT technologies to fundamentally change the way people interact with their surroundings. “Sustainable Transport” can mean any or all these things, including expanding access to transport services in rural areas. 
But however the term is interpreted, it is not normally associated with Africa.  Indeed, in many respects, common images of African transport are synonymous with unsustainability – high rates of traffic growth and congestion (even in cities with comparatively low motorization rates), high traffic injury and fatality rates from substandard road safety practices, highly polluting vehicles, minimal formal public transport services, poor enforcement of road worthiness and vehicle overloading– and the list could go on.  
It is then very telling that the inaugural conference of the Africa Sustainable Transport Forum took place in Nairobi, Kenya in late October, with not only a great deal of interest but also high-level participation (with delegates from 42 African countries, including 25 Ministers). The conference was hosted by the Kenyan government, with support from the World Bank-led Africa Transport Policy Program (SSATP) and the United Nations Environment Program (UNEP). The Ministerial portion of the conference was opened by both President Kenyatta and Secretary General Ban Ki Moon. 
Over three days, technical experts and ministers discussed what transport sustainability means for the continent, resulting in the first ever Sustainable Transport Action Framework for Africa. There were a number of other “firsts” associated with the conference: the first time African transport and environment ministers gathered together to discuss transport issues; the first time that “sustainability”, as a key objective of transport policy in Africa, was the focus of the agenda; and the first time that a Secretary General of the United Nations had ever opened an international conference focused on transport.

Transit-oriented development — What does it take to get it right?

Chyi-Yun Huang's picture
Follow the authors on Twitter: @chyiyunhuang and @shomik_raj
A recent trip to Addis Ababa really brought the imperatives of transit-oriented development as a complement to mass transit investments home to us. As a strategic response to rapid urbanization and growing motorization rates, Addis is one of several African cities currently developing public mass transit systems such as light rail and bus-rapid transit. Similar initiatives are budding in Dar es Salaam, Nairobi, and other cities in South Africa.

It is well known that transit-oriented development, or ToD, is a high-value complement to mass transit development. Compact, mixed-use, high density development around key mass transit stations can have the dual benefits of creating a ridership base that enhances the economic and financial viability of the mass transit investment and compounding the accessibility benefits a mass transit system can bring to a city’s residents. This is not to mention the intrinsic value in creating vibrant social gathering places for communities at strategic locations.

Africa Transport Policy Program (SSATP) Builds Momentum Towards an Environmentally Sustainable Transport Forum for Africa

Over the past decade, Africa has been experiencing tremendous economic dynamism and growth: seven of the world’s ten fastest-growing countries are in Africa; the continent’s economic output has more than tripled; and average economic growth is expected to be 4.8 percent in 2013.

Stopping the Carnage on the Roads: a Multisectoral Challenge

Patricio V. Marquez's picture

During a trip to South Africa last week, I was saddened to read this newspaper headline:  “24 people killed, 14 seriously injured, and 44 with minor injuries after bus smashed into a mountainside.” The bus was bringing people back to Cape Town's township of Khayelitsha from a church gathering in eastern Mpumalanga—most of the occupants were women and children.

Getting ready for ICT’s potential to make transport safer and more efficient

Julie Babinard's picture

How relevant is ICT for transport? The emergence of low-cost open-source mapping tools; widespread cellular network coverage in developing countries; declining costs of mobile phone hardware; and increasing Internet use by public agencies have resulted in unprecedented opportunities to support transport planning and management in developing countries.

Where is our road? Taking Politics out of Regional Transport Infrastructure Planning

Charles Kunaka's picture

Africa’s infrastructure deficit is no secret. Several recent studies by the World Bank and others have confirmed that across the continent, roads are inadequate, railways in poor condition and waterways limited. While the problems are most obvious at the national level, they are more acute along routes connecting countries. Lack of resources contributes to the patchy state of infrastructure connectivity between African countries.  But it is not the only hurdle. A key question is: given limited resources, how should infrastructure be planned, prioritized and financed?

Sixteen countries in Sub-Saharan Africa are landlocked. To trade goods in overseas markets, they must cooperate with their coastal neighbors, working together to plan roads, transport goods to port and keep borders open. This is harder than it sounds. While numerous regional organizations exist to coordinate infrastructure planning in Africa, in practice they are made up of representatives with interests rooted in their own countries. Decisions by these bodies are often political and driven by members’ desire to see projects in their home territories.


Road Safety: An Issue That Concerns Us All

Tawia Addo-Ashong's picture

Working in transport for development, our focus is often on the physical infrastructure that is needed to improve mobility and provide access to services and markets.  Road safety is an issue that obliges us to focus on our clients:  the young and vulnerable users of road networks around the world.