Gas Station & C-Store Feasibility Glossary

Plain-English definitions of the terms you'll run into in a gas station or convenience-store feasibility study. Bookmark it.

Feasibility study

An independent analysis that projects the demand a fuel or c-store site can capture — fuel volume, inside sales, competition, and trade area — before you build, buy, or finance it. It projects demand; it does not underwrite the deal. (See what's in a feasibility study.)

Retail Site Analysis (RSA)

The full, lender-ready feasibility study: projected fuel volume, inside-store sales, foodservice, competition and capture, and trade-area demographics, with a documented, sourced methodology. (See screener vs. full RSA.)

Screener

A fast, lower-cost early-stage read used to filter a site in or out before committing to a full study — ideal when comparing several corners.

AADT (Annual Average Daily Traffic)

The average number of vehicles passing a point per day. It's the raw traffic pool — the starting point for a fuel-volume estimate, not the forecast itself.

Capture rate

The share of passing vehicles that actually stop to buy fuel. It's driven by access, visibility, and nearby competition — which is why two sites with identical traffic can perform very differently.

Capturable traffic

The portion of passing traffic a site can realistically capture, after adjusting the raw count for access geometry, trip purpose, and the competitors already inside the radius. (See how to estimate fuel volume.)

Trade area

The geographic area a site draws customers from — the rooftops, workplaces, and daypart demand behind the road. Fuel follows the road; inside sales follow the trade area.

Capture radius

The area around a site within which it competes for the same customers. Every strong competitor inside the capture radius splits the demand.

Inside sales

Revenue from inside the store — merchandise and foodservice — as opposed to fuel at the pump. On most stores, inside sales carry the profit. (See the c-store feasibility study.)

Foodservice

Prepared-food revenue (a kitchen, deli, or food program). It can lift the basket significantly — but only where the trade-area demand supports it.

Daypart

The time-of-day pattern of demand (morning commute, midday, evening). A commuter corridor and a residential pocket sell different baskets at different dayparts.

Fuel volume

The gallons a site sells, usually expressed per month. The single most important — and most often over-estimated — number in a gas station deal.

Access geometry (median, left-in)

The physical ability of cars to enter a site. A raised median, no left-in from the busy direction, or a hard-to-see entrance can erase a large share of inbound traffic.

MPD (fueling position)

A Multiple Product Dispenser — a fueling position at the forecourt. More positions raise throughput capacity, but only if the demand is there to fill them.

DSCR (Debt-Service Coverage Ratio)

A lender's measure of whether a project's cash flow covers its debt payments. It's part of underwriting, done by the lender — not part of a feasibility study.

Special-purpose property

A property that's hard to convert to another use — like a gas station. This classification is why SBA lenders typically require an independent feasibility study. (See feasibility studies for SBA loans.)

Jobber

A fuel distributor/supplier that signs up dealers and supplies branded or unbranded fuel. A jobber's volume estimate isn't independent — it wants the supply contract.

Branded vs. unbranded fuel

Whether a site flies a major fuel brand or sells generic. Brand and price position affect a site's fuel draw and margin economics.

Demand ceiling

The maximum demand a specific site can deliver — largely fixed by its location the day you sign. You can renegotiate rent and staffing; you can't renegotiate the corner.