PROJECT

Two rail lines, one regional network.

Regionaltangente West: a two-line rail infrastructure program connecting Bad Homburg, Neu-Isenburg, Frankfurt-Praunheim, Bad Soden, and Dreieich-Buchschlag.

2
Rail lines
RTW
Photo
Frankfurt am Main, Germany
§ 02 — The Outcomes, In Cleared Figures

Every cleared figure, by the numbers.

2
Rail lines
§ 03 — How It's Built: The Modules

Three modules, from QS calculation through completion.

app.prob.is/calculate

Calculate

QS calculation, from day one

Quantity-survey-based cost calculation from the earliest planning stage.

app.prob.is/contract

Contract

Every package, from pre-construction

Contracts and commitments tracked from pre-construction, not from the first invoice.

app.prob.is/control

Control

Cost control through completion

Forecast vs. actual, reconciled continuously, line item by line item.

§ 04 — How It's Built: The AI

Where PROBIS's AI earns its keep on this program.

AI Report Builder

Productive

Decide · AI Report Builder — build any report from a prompt. A controller writes a prompt once for a monthly variance report across three projects; from then on it updates itself automatically as new cost data arrives.

§ 05 — How It's Built: The Dashboard

45 sub-projects, on one dashboard.

Illustrative only — figures below are fictional and do not represent the program's actual line-item data.

app.prob.is/airports/program-overview
Fictional Data — Illustrative Only
RTW Program Overview
3 of 4 on budget
Package
Budget
Forecast
Status
North Line Tunneling
€650M
€640M
On budget
South Line Stations
€420M
€450M
Review
Signaling & Systems
€180M
€180M
On budget
Rolling Stock & Depot
€150M
€150M
On budget

Illustrative only — figures are fictional and do not represent the program's actual line-item data.

§ 06 — Proof From The Field

Additional perspective from Harald Rohr is a named source for this engagement — quote pending confirmation, left blank rather than paraphrased.

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