SADC non-tariff barrier reduction — built-market implications — for regional operators

June 15, 2022

Advertise Here | By Cabanga Africa Group

The North-South Corridor is, on a map, a single continuous route: Durban through Johannesburg, into Botswana and Zimbabwe, on to Lusaka, Lubumbashi in the Democratic Republic of Congo, and Lilongwe and Blantyre in Malawi. On the ground, it is a sequence of separately administered border posts, each with its own customs regime, inspection practice and documentation standard, and SADC's own institutional record now estimates that the cumulative friction of crossing them adds a tariff-equivalent cost of roughly 40 percent to regional trade. A corridor built as physical infrastructure has not yet been operating as an integrated commercial system, and that gap between engineering continuity and administrative continuity is the structural tension worth examining.

This year SADC has intensified work to close it, commissioning Time Release Studies to measure border-clearance performance corridor by corridor, with the North-South Corridor earmarked as the first regional exercise across the 2021/2022 and 2022/2023 financial years. For a Property, Infrastructure & Megaprojects readership, the relevant question is not whether the roads, rail links and border posts along the corridor physically connect — they largely do — but whether they function as one system from a commercial standpoint, or as sixteen countries' worth of independently governed chokepoints joined by tarmac.

The thesis is that non-tariff barrier reduction is, in this context, an infrastructure-utilisation question as much as a trade-policy one: the region has built or upgraded the physical corridor, and the unresolved question is whether administrative reform can make that asset perform anywhere close to its physical capacity.

Physical connectivity has outpaced administrative connectivity

The North-South Corridor's routing through Durban's port, South Africa's rail and road network, and onward through Botswana, Zimbabwe, Zambia, the DRC and Malawi represents one of the region's most significant pieces of built trade infrastructure, and much of that physical capacity already exists. What the 40 percent non-tariff-barrier cost estimate demonstrates is that the corridor's commercial performance lags well behind its engineering capacity, because border posts along the route operate as separate administrative units rather than as coordinated checkpoints on a single logistics corridor.

This is a familiar pattern in corridor economics globally: physical infrastructure is typically easier to finance and build than the cross-border administrative coordination needed to use it efficiently, because roads and rail sit within a single country's engineering and procurement process while customs harmonisation requires sixteen sovereign administrations to align. SADC's own account of the trade facilitation push frames this year's Time Release Studies as the mechanism finally built to measure that gap corridor by corridor, rather than assuming physical connectivity automatically delivers commercial connectivity.

What the Time Release Study will actually reveal

A Time Release Study, in practical terms, measures how long a consignment spends at each stage of a border crossing — arrival, documentation checks, inspection, release — and aggregates that into a total corridor transit time. For infrastructure investors and logistics operators, that data is the missing input needed to model actual corridor throughput capacity, as distinct from the theoretical throughput capacity implied by the road and rail infrastructure alone.

This distinction has direct commercial consequences for anyone evaluating warehousing, dry port or logistics-park investment along the corridor. A site positioned near a border post with chronically slow clearance times has effectively lower usable throughput than its physical location suggests, regardless of how well-built the surrounding road or rail infrastructure is — meaning infrastructure investment decisions along the North-South Corridor should wait for, or at minimum weight heavily, the border-specific clearance data the current studies are designed to produce.

Where built-environment investment should follow the data

Once corridor-level Time Release data exists, it should function as a locational signal for logistics infrastructure in the same way traffic-count data informs retail site selection: border posts showing meaningful clearance-time improvement become more attractive locations for dry ports, bonded warehousing and cross-docking facilities, because faster clearance directly increases the commercial throughput a nearby facility can actually capture.

Conversely, border posts where non-tariff friction persists despite the reform programme represent a caution signal for infrastructure investors — capacity built near a persistently slow crossing risks being underutilised regardless of the surrounding road or rail quality. This is a case where physical infrastructure economics and trade-policy reform are inseparable: the commercial value of a logistics site along the North-South Corridor is only partly a function of its engineering location, and increasingly a function of how quickly the specific border post nearest it clears goods.

What comes next

The next implementation test is whether the North-South Corridor's Time Release Study, once published, identifies specific border posts as priority targets for further customs and infrastructure investment, giving logistics and property developers a data-backed basis for site selection rather than a general regional integration narrative to work from.

Property and infrastructure operators evaluating logistics investment along SADC corridors should treat that publication as the point at which the North-South Corridor's true commercial throughput — as opposed to its physical capacity — finally becomes measurable, and plan site selection accordingly rather than ahead of the data.