Truck Fleet — Rain-Risk Dispatch
Trucks required for rain-risk dispatch from haul distance, speeds and plant rate.
Mix in transit when rain hits is mix wasted — the dispatch question is how many tonnes are exposed on the road at any moment. This fleet calculation times-in-transit gives exactly that exposure number; radar plus this figure is the shutdown call.
Formula
Note: Paving estimates only — the project mix design, agency specification and the plant's QC data govern. Temperature models are simplified; verify with an infrared gun and density gauge on the mat.
Trucks required for rain-risk dispatch from haul distance, speeds and plant rate. A free asphalt paving temperature & logistics tool — no sign-up, no upload, instant results in your browser.
About Truck Fleet — Rain-Risk Dispatch
Truck Fleet — Rain-Risk Dispatch computes the governing relationship cycle = 2d/v + ends · N = TPH ÷ (payload/cycle) live as you type. Mix in transit when rain hits is mix wasted — the dispatch question is how many tonnes are exposed on the road at any moment. This fleet calculation times-in-transit gives exactly that exposure number; radar plus this figure is the shutdown call. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Truck Fleet — Rain-Risk Dispatch
- 1Enter your values — One-way haul distance, Average haul speed, Load + ticket time, Unload/paver time and more (sensible defaults are pre-filled).
- 2Read the live results: Cycle time, Trucks required, Mix on the road at any time.
- 3Check the "with your numbers" line to see cycle = 2d/v + ends · N = TPH ÷ (payload/cycle) substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Truck Fleet — Rain-Risk Dispatch?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula cycle = 2d/v + ends · N = TPH ÷ (payload/cycle) with authoritative sources cited on the page (NAPA — HMA paving handbook & best practices)
- ✓Mix in transit when rain hits is mix wasted — the dispatch question is how many tonnes are exposed on the road at any moment.
- ✓SI ⇄ Imperial toggle converts your inputs in place, so you can work in the units your drawings use
Frequently asked questions
What formula does the truck fleet — rain-risk dispatch use?+
It evaluates cycle = 2d/v + ends · N = TPH ÷ (payload/cycle), exactly as published. Sources: NAPA — HMA paving handbook & best practices. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Mix in transit when rain hits is mix wasted — the dispatch question is how many tonnes are exposed on the road at any moment. Paving estimates only — the project mix design, agency specification and the plant's QC data govern. Temperature models are simplified; verify with an infrared gun and density gauge on the mat.
When is this calculator the right tool for the job?+
Trucks required for rain-risk dispatch from haul distance, speeds and plant rate. A free asphalt paving temperature & logistics tool. This fleet calculation times-in-transit gives exactly that exposure number; radar plus this figure is the shutdown call. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Does it support both metric and imperial units?+
Yes — the SI ⇄ Imperial toggle converts the values already in the fields, preserving the physical quantity, so you can flip mid-calculation without re-entering anything.
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