Notes on carbon markets and industrial transition
Feedback from planners, fleet engineers and reporting officers who took a corridor note, a factor table or a coaching cycle and ran it against their own diesel and tonne-kilometre data.
N3 corridor baseline
We pulled three months of telematics after reading the N3 leg breakdown and rebuilt our diesel baseline by gradient section. The gap between our old corridor average and the real burn was wide enough that our quarterly report had to be restated.
Thabo M. - Fleet engineer, Gauteng haulage
Emission factor alignment
The Richards Bay factor comparison gave us the language to explain to two operating divisions why their numbers differed on the same rail movement. We now use one factor set across the group and the audit questions stopped.
Naledi K. - Sustainability officer, container terminal
Coaching cycle
We dropped the annual slide session and moved to monthly route-specific reviews with the drivers. Fuel burn on the N1 legs came down within two cycles, and the senior drivers who pushed back at first are now the ones running the sessions.
Riaan V. - Operations manager, Western Cape
Reporting without an analyst
As a small haulier we do not have anyone full-time on reporting. The method notes and the spreadsheet template were enough for us to produce a defensible diesel and tonne-kilometre figure for our largest client.
Sipho D. - Owner, inland depot consolidation
Telematics data quality
The piece on telematics data quality made us check our own pulls before publishing anything. We found two vehicles reporting idling time that did not match the fuel records, which would have failed review.
Lerato P. - Logistics planner, Johannesburg
Electric truck trial notes
The trial write-ups gave us a realistic read on range and depot charging before we committed to a pilot. We scaled the trial down to one route instead of the three we had planned, and that decision saved us a lot of rework.
Anja B. - Fleet decarbonisation lead
Three formats cover most of what logistics planners, fleet engineers and sustainability officers ask us for. Pick the one that matches how your reporting year is actually going, not the one that sounds best in a board pack.
A written read on one route or terminal you already run. We take your diesel litres, load splits and telematics pulls, then compare them against the corridor baseline for the N3, N1 or the Johannesburg–Durban rail spine.
For operators with several depots, mixed rail and road legs, and more than one person touching the numbers. We align emission factor selection across the group so two sites moving the same coal or containers stop reporting different carbon figures.
Built for Gauteng and Western Cape fleets without a full-time analyst. We set up a repeatable monthly routine: what to pull from the trucks, which factors to apply, and how to keep a record that holds up if a client or auditor asks.
Not sure which fits? The editors' notes explain how each format came out of real corridor work.
Transport Carbon Review is not a newsletter of press releases. Every issue carries at least one corridor note, one method piece and one data problem worth arguing about. Here is the working set of formats we run, and what each one is meant to give a planner, fleet engineer or sustainability officer who has to defend a number.
Corridor notes start with the road or rail leg, not the headline. See how we frame the editorial team and review process behind each dispatch.
Leg-by-leg reads on the Johannesburg–Durban rail spine, the N3 and N1 road splits, and container flows through Richards Bay. Load factors, gradients, idling time and where the assumed average breaks down.
When a factor set changes, we show what shifts in reported tonne-kilometre emissions and which assumptions stop surviving an audit. Short, sourced, with the spreadsheet logic left visible.
How to build a diesel baseline from telematics pulls, reconcile fuel cards against odometer data, and keep a reporting group aligned without rewriting every workbook each quarter.
Electric and gas truck trials, driver coaching cycles that move fuel burn, and the data-quality problems that quietly wreck a sustainability report before it reaches the board.
Full transcripts from hauliers, depot managers and analysts, lightly edited for length. Plus the occasional column about claims that do not hold up once someone asks for the underlying litres and kilometres. Small operators in Gauteng and the Western Cape get the same treatment as the large fleets.
Corridor tip or correction? Reach the editors through the contact desk.
Numbers in this magazine are only as good as the definitions behind them. Before you quote a corridor figure in a board pack or a tender response, check which of these caveats applies to the method you are reading.
Unless a method note says otherwise, tonne-kilometres are calculated on payload moved, not on gross vehicle mass. Empty running and repositioning legs are reported separately, because folding them into the loaded figure flatters the result and rarely survives an external review.
Factor sets are dated. A figure published in an earlier dispatch may use a different factor version than the one you are comparing it against. Where a comparison matters, we state the factor source and the year it was issued. Mixing versions across a reporting group is the most common cause of unexplained variance.
On the Johannesburg–Durban spine and the Richards Bay flows, a single consignment often moves by more than one mode. We attribute emissions to the leg where the fuel was actually burned, not to the party that booked the load. That distinction changes who carries the number in a scope 3 report.
Fuel and distance pulls are only used here when the logger covers the full trip and the idling channel is intact. Gaps longer than a shift, manual overrides and uncalibrated tank sensors are flagged in the method note rather than smoothed over. If the underlying data is weak, we say so.
Electric and gas truck trials reported here are described by route, load profile and duration. A short urban depot cycle is not comparable to a long-haul corridor run, and we do not present one as evidence for the other. Vendor-supplied figures are labelled as such.
Methods aimed at fleets without a full-time analyst trade precision for repeatability. That is a deliberate choice, not an oversight. Where a simplified baseline is offered, we note which audit questions it will not answer, so a haulier in Gauteng or the Western Cape knows when to escalate to a fuller method.
Corrections and corridor tips are welcome. If a definition here conflicts with the method note you are reading, treat the method note as the more specific source and write to the editors at info@transportcarbon.com.