Think tank on individual mobility
Travel time is the measure of a city.
iMOVE studies and promotes the infrastructure changes that shorten journey times for people who travel in their own vehicle. No intervention may lengthen them, and wherever possible flows are separated. That is why we oppose indiscriminate pedestrianisation.
Fig. 01 — Multi-level interchange. Photograph: Chait Goli, Pexels.
No increase in travel time
The study comes first and must demonstrate it. Measurement after the intervention only verifies it.
Separated flows
Wherever possible, flows are separated. Any intervention that overlaps flows that were previously separate is rejected.
Principles
No increase in travel time
An intervention that lengthens anyone's journey is not carried out. Full stop.
Separated flows
Pedestrians, cyclists, vehicles, public transport and logistics move better when they do not overlap.
Study first, verify afterwards
The prior study decides whether to intervene. Measurement afterwards checks that it was right.
Infrastructure before prohibition
When a problem can be solved by building better, there is no reason to solve it by banning.
Positions
Proposals
Grade-separated junctions
Underpasses and flyovers at the few junctions that decide the travel time of whole corridors.
Adaptive green wave
Dynamic signal coordination along whole corridors, tuned to real flows.
Junction geometry
Redesigning at-grade junctions to raise capacity without widening the carriageway.
Bypasses and ring roads
Those with no business in the centre should not have to cross it.
Structured and underground parking
Moving parking off the carriageway: more capacity, fewer wasted circuits.
Reversible and dynamic lanes
Using the same carriageway differently according to time of day and flow.
Method
The study decides. Measurement verifies.
Every intervention is studied beforehand, with a model calibrated on the existing situation, and goes ahead only if the study demonstrates that nobody's journey time gets worse. Measurement afterwards, with the Travel Time Index, verifies the study: it does not justify an intervention already made.