Parking Solutions

Engineered as primary infrastructure, not leftover space.

Parking is the design element that drives the size and organization of commercial sites — and on most retail and office projects, that's exactly right. The zoning ordinance specifies a minimum count, but the count is just the starting point. The actual design has to handle stall geometry, aisle width, ADA stalls and accessible routes, drainage, lighting, landscape islands, snow storage, and the slope discipline that keeps the lot drivable in winter. Get any of those wrong and the lot underperforms even when it has the right number of stalls.

The geometry rules are stricter than most people think. Parking aisles in retail centers should be perpendicular to the storefront whenever the site allows it, so customers can walk a straight line from their car to the door without crossing through other aisles. The maximum acceptable distance from the most peripheral parking space to the building entry is roughly 400 feet — a two-minute walk, beyond which customers start to give up. In larger centers, that constraint forces parking to encircle the building rather than stretch to one side. Bailey draws every parking field with that 400-foot threshold in mind.

Drainage is where most parking lots quietly fail. The industry standard is pavement slopes between 1 and 5 percent, sloped to direct runoff to curb inlets, sump areas, or off-pavement ditches. Long runs of sheet flow on steep slopes have to be avoided — especially in colder climates, where sheet flow can freeze and create real hazards for pedestrians and drivers. Inlet placement matters too: inlets should never sit in heavy pedestrian zones like crosswalks or curb ramps, and they should never force a driver to step around them when getting out of a car. We size and locate inlets for both hydraulics and human movement, not just for the storm calc.

ADA compliance is the legal floor and the design ceiling at the same time. Accessible stalls have to be located on the shortest accessible route to the building entry, and the route itself has to be no steeper than 1:12 (8.33 percent) with 1:48 cross slope, no thresholds, no abrupt grade changes. On sloping sites that constraint can drive the entire grading plan. Bailey designs the accessible route first, then fits the rest of the parking field around it — not the other way around.

Finally, the unglamorous stuff: landscape islands sized for healthy tree growth (and for the snow plows that have to push snow somewhere in February), pavement sections engineered for the actual wheel loads (heavy-duty at refuse pickup zones, standard at customer aisles), lighting designed for night-time visibility without spilling into adjacent residential, and striping that's legible after the first winter. The work isn't glamorous, but it's the difference between a parking lot that ages well and one that gets repaved in seven years.