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Some recommended references for sustainable transportation design
We conclude the month of October with the following recommended readings:
- Designing Walkable Urban Thoroughfares: A Context Sensitive Approach, An ITE Recommended Practice, 2010
- Model Design Manual for Living Streets, 2011
- Smart Transportation Guidebook, Planning and Designing Highways and Streets that Support Sustainable and Livable Communities, 2008
While these are guidelines and manuals developed and published in the United States, the principles and much of the content and context are very much applicable here.
As an additional reference, here is the latest version of functional classifications for streets that is supposed to be context-sensitive:
- Stamatiadis, N., A. Kirk, D. Hartman, J. Jasper, S. Wright, M. King, and R. Chellman. 2017. An Expanded Functional Classification System for Highways and Streets. Pre- publication draft of NCHRP Research Report 855. Transportation Research Board, Washington, D.C.
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Global Street Design Guide
Here’s another quick post. I just wanted to share this article with a link to a Global Street Design Guide that was developed by the National Association of City Transport Officials (NACTO) in the United States (US). It’s a nice guide that’s based on the experiences of many cities in the US including transformations that have made commuting more efficient, enhanced mobility and, most important of all, improved safety. Following is the link to a more direct link to the guide:
NACTO and the Global Designing Cities Initiative Release Global Street Design Guide
This will be a good reference in the Philippines where many cities are in need of transformation to address current and future challenges in transportation. Planners, engineers and students should read this and use it to make our streets safer and more efficient in terms of mobility for all. It would be nice to see fresh ideas on how we can improve our streets not just in Metro Manila but elsewhere across the country. Of course, it would be nice if city planners of local government units (LGUs) can adopt this design guide parallel with efforts to improve public transport services. It should be understood that simply imposing lane allocations and traffic flow policies (one way?), for example, will not solve problems but may create more. The approach should always be integrated, inclusive. In other words, complete.
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The engineering blame game and a need for some re-education
A prominent architect was always posting on his social media account about how much of what’s wrong with our infrastructure (especially transport-related) are due to engineers. It was a sad commentary particularly because he wasn’t mentioning anything about the involvement and responsibility of architects in the planning and design of infrastructure. For most projects that fall under the category of ‘planned development’ including mixed use developments like the Eastwoods, BGCs, Nuvalis, MOAs, and other similar projects are planned and designed mainly by a team of architects. Highways and streets are part of these projects and often, engineers are given the task of detailing and in certain cases, analyzing and ending up with the responsibility to justify designs provided to them. So for those types of projects funded or led by the private sector, its probably the architects who have much say in the plans and designs and who should be scrutinized for their shortcomings in as far as sustainable or “green” criteria are involved.
It is a whole different story, however, for public roads, especially those that are classified as national roads. The reality is that many DPWH engineers need to re-tool, learn and practice principles of sustainable infrastructure design. This includes incorporating green or environment-friendly design principles, which includes consideration of the landscape. We met some DPWH engineers in one seminar before on sustainable transport who thought environmentally sustainable transport (EST) was simply environmental impact assessment (EIA) and who proudly claimed they already knew about the topic. I think many engineers and planners in government need to unlearn many things and dissociate their minds from a lot of what they have come to accept as standard, acceptable or correct that are actually sub-par, archaic or flawed. Kapag nakasanayan na at matagal nang ginagawa o ginagamit ay napagkakamalang tama at angkop kahit na sa katotohanan ay hindi.
A good appreciation of history and heritage also appear to be scarce these days whenever the DPWH is involved. Proof of this are the road widening projects in Leyte and Iloilo that now threaten many ancestral houses that are located along the national roads. Many contend that road widening is unnecessary because congestion has not set in along many of the sections that have been widened or are candidates for such projects. It can be seen along many widened roads along Tarlac and Pangasinan, for example, that the problem is not really congestion but poor enforcement of transport and traffic regulations. Such include tricycle operations, roadside parking, and encroachments on the road right of way (RROW).
In most cases its pure and simple analysis that needs to be conducted first. Are roads really congested and requiring additional lanes? The evidence does not seem to support many cases of road widening as data on congestion from the DPWH Atlas itself requires validation on the ground. A recent World Bank study, for example, found that for many national road sections reported as congested in the Atlas, the opposite is true when validated on the ground. Such issues with data that are used as basis for decisions whether sections need to be widened are serious and lead to a waste of funds as well as negative impacts on heritage or historical structures.
The DPWH still needs to do some re-inventing and should actually take the lead in many initiatives. Among these are those pertaining to what are being referred to as “complete streets.” Last week, there was an article in newspapers where the DENR called for pedestrian and bike lanes along roads. The call was not specific to national or local roads but it is something that the DPWH should have already anticipated and working at for roads under it jurisdiction given the outcomes of the International Road Assessment Program (iRAP) project that covered several thousand kilometers of national roads that pointed to the need to improve roads to improve safety for pedestrians and cyclists. It is a matter of having progressive or dynamic rather than reactive or static stance at the DPWH and this requires more than just the rudimentary engineering background for the agency to take road planning, design and construction to another level.
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