Desarrollo del Vecindario y el diseño de la reticula

vía Neighborhood Development and Grid Design | Sustainable Cities Collective.



Residents enjoy the healthy and liveable aspects of their neighbourhood.
Mucho se ha escrito sobre la importancia de hacer nuestras ciudades saludables y habitables. Estos tipos de ciudades están de hecho diseñadas por una variedad de razones; por ejemplo, para permitir a los residentes a estar mental y socialmente activos, y en buena forma física, y por lo tanto capaces de disfrutar las mejoras en su salud, bienestar y calidad de vida, que a su vez pueden dar lugar a ahorros considerables en costos de cuidado de la salud para ellos -en lo individual- y su ciudad.
Mucho se ha escrito tambien acerca de lo que se puede hacer para que nuestras ciudades sean más saludables y habitables. Es bien sabido que este tipo de ciudades se caracterizan por una serie de principios básicos de diseño y atributos; por ejemplo, mediante la inclusión de:
desarrollos compactos y de uso mixto;
edificios respetuosos del medio ambiente;
una amplia gama de opciones de vivienda;
un alto nivel de conectividad al transporte;
atractivas oportunidades para los residentes para socializar y ejercitarse;
y opciones atractivas para residentes para caminar, rodar en bicicleta, o tomar el transporte público para ir a los lugares que necesitan o quieren ir todos los días -sin tener que depender de sus coches privados en todo momento.
However, much less has been written —and documented— about when and how, in the planning and design process, we should implement those principles and attributes.

Obviously, the street-layout and site plan configuration phases at the neighbourhood and district levels can be the most critical stages of the planning and design process to ensure healthy and liveable developments.

And it is exactly at this stage when planners, policy makers, politicians, developers, designers, and residents should be aware of the full range of options that are available to them and diligently ask:

  • How can we make our project more walkable?
  • How can I increase mobility and connectivity in my project?
  • How can we boost pedestrian and traffic safety in our project?
  • How can I make public open spaces more efficient, more lively and more attractive so that residents use them more often to socialize, exercise and engage in civic activities?
  • how can we maximize land efficiency in our project so that we can make it more sustainable?

Recently, when I was looking into the literature related to one of my projects, I was fortunate to have found answers for all the questions listed above —and many more. They were in a new book titledRemaking the City Street Grid.

This book is informative, thought-provoking, comprehensive, and contains numerous analyses and discussions of real-life examples where a variety of healthy and liveable aspects have been successfully implemented.

It also features four detailed case studies of a variety of applications and designs, three of which are located in Canada —one in each: Calgary in  Alberta, Stratford in  Ontario, and Kelowna in British Columbia— and one in New York City in the U.S.A.


In the book, I also learnt about an interesting street grid planning model called the Fused Grid —which I believe community planners, policy makers, politicians, designers and developers can use wisely to create healthy and liveable neighbourhoods and city districts.

The Fused Grid is a neighbourhood and district street layout model that combines the geometry of inner city grids —rectangular blocks— and the geometry of conventional suburbs —loops and cul-de-sacs.

This fusion results in retaining the best characteristics of each of the two geometries and none of their disadvantages, and in enhancing both the functioning and the quality of the neighbourhood and district environment.[1]


Exhibit 1: The site plan of a Fused Grid city district example showing a full neighbourhood of four quadrants (in light beige) and intersecting mixed use zones (in orange).

What the Fused Grid accomplishes

The Fused Grid combines a continuous grid of roads for district and regional connectivity, and a discontinuous grid of streets for neighbourhood safety. The discontinuous grid of streets is supplemented by footpaths that connect all streets —thus turning the neighbourhood into a fully connected pedestrian realm. Together, the continuous and the discontinuous grids accomplish the following:

  • Optimize the use of land for streets
  • Secure tranquil and safe neighbourhoods
  • Increase the potential for social interaction
  • Reduce the amount of impermeable surfaces
  • Optimize infrastructure
  • Assist district and regional traffic flow
  • Encourage walking while positively discouraging short-distance driving, and
  • Provide opportunities for rain water management

The Fused Grid anticipates and channels land intensification and mixed uses by creating a zone with high potential for change. It can also accommodate adaptations to future traffic demand.

Saying in it in a very simplified manner, the Fused Grid balances both the needs of the pedestrians and the needs of the motorists while responding to the quest for economic efficiency and to the need for environmental stewardship.


Exhibit 2: An aerial view of another Fused Grid city district example showing a full neighbourhood of four quadrants and its intersecting mixed use zones.

Basic design principles for the Fused Grid quadrant

When using the Fused Grid model, there are three basic design principles for structuring a quadrant —and from them, and their combinations, several additional variations have been developed, and many more are possible:

  • The first principle is that streets within the quadrant do not traverse the quadrant; they either stop or return to the perimeter of it
  • The second principle is that all the streets in the quadrant must be connected with pedestrian-bicycle pathways. This makes the entire quadrant (neighbourhood) easily traversable on foot or by bike
  • The third principle is the character, configuration and functioning of the neighbourhood open space. The neighbourhood open space must indeed accomplish the following: serve as the social and focal point for the neighbourhood; serve as its recreation and play area; function as a passage and crossover point for the pedestrian-bicycle pathways; and enable continuous walking throughout the neighbourhood without any street crossings.

Key findings of two Fused Grid studies

One study[2] that examined two measures: 1) relative route directness and 2) relative network density across walking and driving modes —both of which have associations with odds of walking, odds of driving, distance walked, distance travelled by vehicle, and number of trips. The results suggested that increasing connectivity on foot relative to in-vehicle travel, increases the likelihood that people will walk more and drive less. And that these results are consistent with the premise of the Fused Grid.

Another study,[3] designed to make a comparative assessment of the transportation impacts of three different district street layouts —conventional suburban, neo-traditional, and Fused Grid— found that the Fused Grid layout exhibits the best traffic performance, particularly with increasing density of developments, and that this occurs for two reasons:

  1. the hierarchical street system in the Fused Grid layout provides for efficient traffic flow into and out of the neighbourhood; and
  2. the Fused Grid major collectors are designed as one-way couplets, [which] reduce the number of signalized intersections required, and streamlines traffic signal cycle timing.

The conclusions of one of the Fused Grid case studies[4]:

 “This case study highlights two important points: that the fused grid model can be applied to urban settings with equally beneficial outcomes as in a suburban milieu, and that its application can produce considerable benefits in terms of land-use efficiency, connectivity and walkability, active transport, fitness opportunities, noise reduction, clean air, restorative ambience and community cohesion.

“It has been said that a good place for kids is a good place for everyone. Stuyvesant Town provides proof: it has a much higher percentage of families with children (36 percent) than the average in New York City (22.7 percent). Such a statistic shows that a central city district can be a good place to raise a family, if laid out as a fused grid.”

Remaking the City Street Grid  Can be purchased from either Amazon or McFarland.


[1] Except as noted, this and all other information in the article about the Fused Grid was retrieved either partly or completely from The Fused Grid: A Contemporary Urban Pattern on 2-20, March 2015.

[2] Giving Pedestrians an Edge —Using Street Layout to Influence Transportation Choice Research Highlight. CMHC, Socio-Economic Series 08-013, July 2008. KEY FINDINGS page 5. Consultant: Dr. Lawrence Frank, Bombardier Chair of Sustainable Transportation & Chris Hawkins, Masters Candidate. Retrieved on March 16, 2015.

[3] Taming the Flow — Better Traffic and Safer Neighbourhoods Research Highlight. CMHC, Socio-Economic Series 08-012, July 2008. INTRODUCTION page 2 and KEY FINDINGS page 4. Consultant: IBI Group. Retrieved on March 16, 2015.    

[4] Case Study 2: Stuyvesant Town: An Urban Oasis Amid Asphalt and Concrete. New York City. U.S.A. pages 154-160. Remaking the City Street Grid. By Fanis Grammenos and G.R. Lovegrove. Retrieved on March 17, 2015.


Acerca de salvolomas

Asociación vecinal, cuyo objeto es preservar la colonia habitacional unifamiliar, sus calles arboladas con aceras caminables, con trafico calmado, seguras para bici, parques, areas verdes, centros de barrio de uso mixto accesibles a pie y oficinas solo en áreas designadas.
Esta entrada fue publicada en Espacio Publico, Movilidad, Urbanismo y etiquetada , . Guarda el enlace permanente.


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