8 principles for rethinking urban infrastructure

Turning infrastructure into a true piece of the city is not a matter of good intentions. It plays out in a series of concrete decisions, often made very early, sometimes by default. Here are eight principles for carrying that ambition from idea to construction.

Broaden the evaluation grid

For a long time, an infrastructure project was judged on three questions: can we build it? finance it? maintain it? These remain necessary. But they say nothing about what the structure adds to, or takes away from, the city. Three others deserve the same place today, right from the feasibility study: who benefits? what does the project repair in its surroundings? what legacy does it leave behind? What we agree to put in the grid always ends up showing in the finished work.

Break down budgets and mandates

If so many projects do only one thing, it is often because they are financed by a single envelope and steered by a single department. The “transportation” budget does not talk to the “parks” budget, which knows nothing of the “housing” budget. A project able to carry several missions requires that we connect these silos from the start: shared mandates, pooled budgets, crossed responsibilities. The convergence of benefits begins with the convergence of mandates.

Consult those who will live with the structure early

Infrastructure sometimes shapes the daily life of two or three generations. The people who will live alongside it hold a fine-grained knowledge of their surroundings that no study can replace. Involving them from the design stage, rather than at the end to validate a plan already set, improves both the quality of the project and its acceptability. A community that has taken part defends the structure rather than merely enduring it.

Design for what we do not yet know

The structures we build today will serve a world we cannot fully predict: climate, uses, technologies, demographics. Rigidity is a risky bet. Designing for uncertainty means favouring adaptability, meaning structures we can evolve, expand or repurpose without demolishing everything, and assessing each choice across its full life cycle, carbon footprint included. What we keep flexible today spares us from reopening the site tomorrow.

Put people back at the centre of movement

Rethinking mobility infrastructure means first deciding who gets priority. Too many structures have been calibrated for vehicle throughput, with walking and cycling squeezed into whatever space was left. Reversing that order, by designing from the outset for the person who walks, rolls or takes public transit, of all ages and all abilities, changes the very shape of the structure, and that of the city it draws around it.

Make the construction phase useful, not just a nuisance

A major project often means several years of work. We usually treat them as a bad patch to get through. Yet this period is also an opportunity: to test temporary uses, to make the site legible and lively, to give a preview of the spaces to come, to soften the impact on neighbours and businesses. The way we build is already part of what we deliver.

Think beyond the footprint

The influence of a piece of infrastructure does not stop at its boundaries. A station, a bridge or a boulevard transforms streets, land and uses for hundreds of metres around it. Designing at this wider scale, that of the neighbourhood and not only the structure, lets us anticipate these effects rather than endure them: where land value will climb, where new needs will appear, where the project can set off a broader requalification.

Plan now for who will care for it

Added benefits, whether a park, a square, a canopy or a natural setting, only last if someone ensures their upkeep. Too many ambitious developments deteriorate for lack of a clear steward and budget. The question of stewardship is not settled after the ribbon is cut: it arises at the design stage. A structure built to last is also one for which we have planned, from day one, how it will live fifty years from now.

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Opening the conversation

These eight avenues are not a recipe. They are angles for questioning our major projects differently, and for widening the debate beyond technical and financial matters alone.

This reflection extends our newsletter “Weaving the city of tomorrow.” To continue the conversation and receive future editions, sign up here: https://mailchi.mp/lemay/subscription