Week 2 — Type 0: The Wild Curb

Catch-up — Curb Productivity Scale = five levels (Type 0–IV) × six dimensions (Policy, Data, Wayfinding, Decision Point Info, Transaction ease, Enforcement). A city’s level = its weakest dimension. (Full Week 1 introduction →)

This week: the bottom of the scale.

Type 0 at a glance

Where Type 0 lives — and what it costs

Type 0 is the un-managed curb. The curb is treated as overflow public space — first-come-first-served. In its purest form, Type 0 is a residential side-street where everyone parks for free and nobody complains because demand never exceeds supply.

That sounds harmless, and on a sleepy block it is. The trouble starts when Type 0 governance meets Type II demand. A commercial corridor that the city has never gotten around to metering. A downtown perimeter where the meters end abruptly and free-parking blocks begin a hundred feet away. A neighborhood where the office building three doors down means employees fill every space by 8:30 a.m. and shoppers can’t get a curb spot from then until evening.

Type 0 in those conditions is not benign. It is a quiet failure that shows up not as ticket revenue or congestion charts but as missing customers. Long-stay parkers — employees, residents, the occasional opportunist with no errand — fill the spaces and don’t move. The merchant on the corner watches walk-in traffic die. The customer who would have driven in for a 20-minute errand can’t find a space, circles twice, and leaves. The block looks busy from a windshield and feels dead from inside any of the storefronts.

Surprisingly, Type 0 governance persists in places that seem far past it. Cities with sophisticated downtown parking programs often have Type 0 perimeters — three blocks out from the metered core, the rules vanish and the curb returns to wilderness. Universities have Type 0 islands inside otherwise-managed campuses. Suburban downtowns that have grown into commercial corridors but kept the original “we don’t really need to manage parking here” stance from twenty years ago.

How to recognize Type 0 in your own city. Walk the block at the busiest hour for the adjacent businesses. If the same cars are there as were there three hours ago, you have Type 0 governance — regardless of what the rest of the city looks like.

What Type 0 costs — and what graduating to Type I requires

The economic gap between Type 0 and Type I — between unmanaged and even minimally managed — is the largest single jump in the scale. Our v1 modeling suggests Type 0 produces about a quarter of the daily commerce that Type I produces on the same physical block. The reason: the user mix collapses to long-stay. Without time limits or pricing, prime curb fills with employees and residents whose time-without-moving is worth more to them than to the system. Shoppers, diners, and quick-stop customers — the high-spend segments that produce most of the block’s commerce per turnover — are crowded out.

What graduating to Type I requires. Less than people think. A meter at every space is the most legible step. A simple uniform rate citywide. Hard time limits for the busiest blocks (2-hour, in most cases). Enforcement sufficient to make the limits credible. None of this requires sophisticated technology. What it requires is the political will to charge for what was previously free, and the organizational capacity to enforce what was previously unenforced. Both are real costs. They are also, in a way that takes most cities by surprise, recoverable inside one year of operation by the commerce uplift alone.

The leap from Type 0 to Type I is the easiest pure dollars-per-effort jump on the scale. It’s also the one most cities have already made — for which we should be grateful, and on which we should not stop.

Next week: Type I — the Industrial Curb. Where most American cities sit, what it does well, and the ceiling above which it cannot rise.