How to score logistics access against a reference supplier

When you're building a dual-source shortlist, logistics access is the criterion that gets waved through fastest in a supplier review and causes the most grief eighteen months later. A candidate plant can match your reference supplier on floor space, press count, and quality certifications, and still add two days to lead time because the nearest rail siding is forty miles off instead of inside the fence line.

Score logistics access before it shows up as a surprise in a freight audit.

Start with what your reference supplier uses

Before you score a single candidate, write down how your reference site moves freight in a normal week: rail, truck, or both, and how often. If it loads rail cars from an on-site spur three times a week and trucks the rest to a regional DC, that's your baseline. If it's 100% truckload because the product doesn't tolerate rail handling, that's your baseline too.

A lot of sourcing teams skip this step and instead score every candidate against a generic "good infrastructure" standard. That gets you a shortlist of sites that look strong on paper and don't match the freight profile you're trying to replicate. The point of a second source is operational parity with the first.

Rail spur vs highway access for a plant comparison

These two aren't substitutes for each other, and treating them as interchangeable boxes on a checklist is where most comparisons go wrong.

A dedicated rail spur means the plant can load or receive unit trains without a drayage leg. That cuts per-unit freight cost on bulk inputs and heavy castings, where cost scales hard with distance. A site with highway access only, even excellent highway access, adds a drayage transfer that a rail-fed reference plant never has. Check whether the spur is active or just physically present. Plenty of older industrial sites have rail infrastructure sitting unused because the Class I pulled service or the plant switched suppliers years ago.

Highway access scores differently. Measure distance to the nearest interstate interchange. A state road two miles out does not substitute for that, and the route needs to handle oversize or overweight loads without a permit detour. A plant that's "five minutes from the highway" on a two-lane county road with a weight-restricted bridge isn't five minutes from the highway for your trailers.

If your reference supplier runs mixed mode, score candidates on whether they can support the same split.

Port proximity as a sourcing criterion

Port proximity only earns weight in the score if your reference supplier's freight moves through a port. If your inputs or outputs are domestic over-the-road, a candidate's distance to a container terminal doesn't belong in the score. Don't let a sourcing committee get impressed by a site twelve miles from a port when the product never touches an ocean carrier.

Where it does apply, look past straight-line distance. Drayage lane congestion, chassis availability at that specific terminal, and whether the port handles your container type all change the real cost and timeline more than the mileage figure does. A candidate forty miles from a well-run inland terminal can beat one sitting next to a congested coastal port.

Scoring logistics fit for a second source

The question for a second source is whether a site's logistics profile looks like the reference site's. Build your scorecard around that comparison directly: same transport mode mix, comparable transit time to your current destinations, similar access constraints such as permits, weight limits, and seasonal road closures.

That's a physical-fit comparison, and it's slow to do by hand across a region's worth of candidate plants from a directory or a trade show floor, where you're mostly reading brochures and guessing at site layout. Sourcing Candidate Search was built around exactly this problem: it takes your reference supplier's site and searches a target region for plants that resemble it physically, logistics access included, and returns a ranked shortlist with the reference site shown next to each match.

If you're starting a dual-source search and want candidates that already look like your reference plant instead of ones you'll have to argue for later, that shortlist is worth a look.