The Urban Scale Sustainability Compass | Pietelbeek
The Sustainability Compass - a tool for analysing and orienting urban scale projects.
urban scale sustainability urban planning analysis assessment decision making tool
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Type:  Urban
Scale:  Neighbourhood


1/ Analysis

Pietelbeek is an area just outside Hasselt’s medieval ring-road, and area which has remained largely undeveloped due to the zoning.   The site is largely rural however surrounded by housing.  Likewise, the vegetation and water network are of value and should be carefully protected.


HRC masterplan


2/ Objectives

While this site could have easily turned into a generic urban extension, there was an early push to consolidate the housing objectives into a small area and create an urban/agricultural precinct that would benefit existing, new and regional residents.

The municipality proposed low density of housing, which in practice would force residents to travel far for even basic demands such as groceries or a bakery. It was clear that density would provide greater benefits however the level of density was in question.

Instead, we researched desired functions for the new and existing community.  Based on these functions, we could specify the population required to support these functions (the critical mass).  We created the ‘taxography’ diagram (see below) that mapped densities required to support certain functions and the distances accepted to travel to them.  This helped to define both functions and densities.

The basic objectives were to provide a mix of housing, commercial functions, a sports field area and plenty of open space.


HRC - taxography


3/ Development cycle

The development cycle was focused largely on development areas and mobility planning.  The real challenge for this site was that it could have either turned into a disconnected neighbourhood or a short-cut for drivers wanting to quickly get from one side of the city to the other by escaping the ring-road.

A second challenge was to find a development strategy that was flexible enough so development could happen slowly or when the market was ready without having to construct much infrastructure.  This involved coming up with various configurations and density scenarios.


HRC compass


4/ Outcome

The result is not a classic master plan (in the sense of a desired spatial target scenario) but a flexible program based on a range of critical components (recreation, housing, work, nature, water, heritage …) and defines physical connections, with various possible scenarios available that can be easily interpreted.