Sirius Blog

Intermodal insights without fluff. Pick a topic below.

What Is Intermodal Logistics?

Learn how ocean, rail, and trucking work together to cut transit risk and cost. A beginner’s guide to intermodal logistics with clear examples.

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Demurrage vs. Detention

Clear definitions, examples, and a checklist to prevent demurrage/detention fees at ports and ramps.

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Drayage 101

Everything you need to know about port drayage: gate moves, appointments, chassis, and common bottlenecks.

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Real‑Time Visibility in Intermodal

From AIS and terminal feeds to ELD and mobile pings — how to combine signals into usable visibility.

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Intermodal Lane Design

How to compare lanes across modes and pick the best route for total landed cost and service reliability.

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What Is Intermodal Logistics?

Learn how ocean, rail, and trucking work together to cut transit risk and cost. A beginner’s guide to intermodal logistics with clear examples.

Intermodal logistics combines two or more transport modes — typically ocean + trucking — using the same sealed unit (usually a container) from origin to destination. The hand‑offs are planned so cargo stays secure while cost, time, and risk are optimized.

Why it matters

The building blocks

  1. Origin: Stuffing, VGM, export docs.
  2. Ocean leg: Vessel schedule, cut‑offs, free time.
  3. Port & drayage: Appointment, chassis, gate moves.
  4. Final mile: Truck delivery, live unload vs. drop.

At Sirius Services we model routes, schedules, and total landed cost across modes so you pick the best plan — not just the fastest or the cheapest.


Demurrage vs. Detention

Clear definitions, examples, and a checklist to prevent demurrage/detention fees at ports and ramps.

Demurrage is the fee for keeping a container inside the terminal beyond free time. Detention (a.k.a. per diem) is the fee for keeping the equipment outside the terminal too long.

Free time basics

How to avoid fees

Sirius monitors container clocks and sends actionable alerts to keep you on the right side of the line. See our guide for context.


Drayage 101

Everything you need to know about port drayage: gate moves, appointments, chassis, and common bottlenecks.

Drayage is the short‑haul trucking leg that moves containers between the port/rail ramp and the next node. It sounds simple — until appointments, holds, and chassis enter the chat.

Key variables

Best practices

Sirius gives you carrier scorecards and lane analytics so you can route smart when things get tight.


Real‑Time Visibility in Intermodal

From AIS and terminal feeds to ELD and mobile pings — how to combine signals into usable visibility.

True visibility is not one data source — it’s the fusion of vessel AIS, terminal events, carrier EDI, truck ELD/mobile pings, and your own WMS/ERP status.

Core components

From data to decisions

We convert signals to exceptions: “this container needs a flip”, “free time expires tomorrow”, “appointment moved”. Fewer dashboards, more action.

Ask us how our Cargo & Asset Intelligence consolidates these streams.


Intermodal Lane Design

How to compare lanes across modes and pick the best route for total landed cost and service reliability.

Great lanes balance cost, transit time, and risk. The trick is to compare like‑for‑like: include drayage on both ends, free time, storage probabilities, and appointment success rates.

Checklist

Sirius simulates lanes so you can choose with confidence, then maintains live playbooks as conditions change.