Annex EK-2 of the İBB Road Freight Transport Directive bans N3 and O4 vehicles, and N2 and O3 vehicles with a maximum laden mass above 5 tonnes, from 06:00 to 10:00 and from 16:00 to 22:00. The same vehicles may run from 10:00 to 16:00 and from 22:00 to 06:00 only with a permit, so the daytime window is limited to six hours.
| Vehicle | Permitted hours |
|---|---|
| N3, O4 and N2, O3 above 5 tonnes | 10:00-16:00 and 22:00-06:00, permit required |
| N1, O1 and N2, O3 up to 5 tonnes maximum laden weight | 24 hours, permit required |
| Pedestrianised areas, streets and lanes: all classes loading or unloading | 00:00-06:00, permit required |
The maximum laden weight line on the registration. The class letter alone does not decide. Annex EK-1 defines N1 up to 3.5 tonnes, N2 from 3.5 to 12 tonnes and N3 above 12 tonnes. Annex EK-2 then cuts a slice out of N2 and O3: vehicles with a maximum laden weight of up to 5 tonnes may work around the clock with the permit, while those above 5 tonnes fall into the same two windows as N3 and O4. The weight line on the registration decides.
What six hours looks like in a calendar
Illustrative figures, invented for the example: loading at the depot takes 45 minutes, the outward drive 70 minutes, the store's goods-in queue 90 minutes and the return 70 minutes. One trip takes 275 minutes, or 4 hours 35 minutes. The daytime window is 360 minutes and two trips would need 550, so the second trip does not fit the same window. It moves to the 22:00-06:00 band and works only if the store accepts deliveries at night.
One slot in pedestrianised areas
Annex EK-3 gives freight vehicles loading or unloading in pedestrianised areas, streets and lanes, from N1 to O4, a single slot from 00:00 to 06:00, and requires a permit. The İBB LOTEM notice states that traffic exit hours are set at 10:00-16:00 and 22:00-06:00, and bars vehicles with a maximum weight of 40 tonnes and above from the coastal roads shown on its map.
Equipment tare is inside the same threshold
In a fleet that stays below five tonnes, the empty weight of the body and the cooling equipment comes straight out of the payload. Isotec TBX models of 410-795 litres have a payload of 500 kg, and the 900-1,500 litre models 700 kg. Read the payload together with the empty weight of the body, and ask Aris Makina for the empty weight before the route is planned.
WHO's vaccine cold box specification PQS E004/CB04.1, design principle 4.2.6, requires the weight of the coolant packs in a passive container to be the minimum that still delivers the required cold life. Asking your supplier for the loaded tare of a passive container and its plates is, in practice, also asking which status the vehicle will fall into.
Rebuilding a delivery plan around permitted hours puts the whole producer to store distribution flow back on the table.
When choosing a vehicle for a city route, the first thing to check is the maximum laden weight line on the registration; engine power and body volume come after it. A vehicle of up to five tonnes can work with the permit at any hour, except in pedestrianised areas. A heavier one has to split the same round between the six-hour daytime window and the night band. Check the İBB LOTEM notices for the trip date.
