Open the workspace ↗RESEARCH DEMO
VACCINE ACCESS × COLD CHAIN × DISRUPTION RESPONSE

Make vaccines more accessible.
Keep cold chains resilient.

One plan connects household demand, service sessions, transport and cold-chain resources. When conditions change, see how the plan adapts and how much service it retains.

Measured through accessibility and resilience. Model scenarios; field effectiveness is not yet established.

Checking the case and its evidence…MODEL SCENARIO

Compare service retained with the same demand and resources.

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Planned dose obligations / original demand

Inspect the response and evidence →

Loading and verifying the latest accepted results…

ACCESSIBILITY & RESILIENCE

Who can receive service. How much survives disruption.

All charts update together for the same case, scenario and original demand.

ONE CONNECTED SOLUTION

Three barriers. One connected plan.

01 / PLAN

Bring service within reach

Demand, session locations, household travel and time windows determine who can be served. Separate the travel target from the declared acceptance limit, and retain every unmet obligation.

Demand and household conditions → session plans
02 / COORDINATE

Make resources work together

Coordinate inventory, cold boxes, cooling packs, vehicles and staff. Match routes, weight and capacity to the original cold-chain protection clock.

Existing resources and cold supply → feasible delivery
03 / ADAPT

Respond when conditions change

Compare three policies for changes known before dispatch. A separate in-transit recovery example checks tasks, positions, resources and remaining protection time.

Declared event and state → adapt, recover or retain gaps

ACCESSIBILITY / HOUSEHOLDS AND SERVICE

Look beyond totals to the burden on households.

Read coverage alongside each group’s demand. Household burden counts planned household/session visits; unmet obligations remain separate.

Service and group fairness

—Planned dose obligations
—Unmet original demand

C2 household access evidence: Checking household burden under rain conditions.

RESILIENCE / DISRUPTION RESPONSE

See the response. Count the service retained.

Results vary by disruption and search status; some scenarios retain gaps.

Where it stops: resources, missing evidence and search limits

ENABLING THE TWO GOALS

What makes access and resilience possible.

People and training
Staffing and skills

Clinical, transport, custody and monitoring roles support a plan that can be carried out.

Staffing and implementation assumptions
  • Schedules use only declared staff and availability.
  • Training is a proposed measure and estimated input, not evidence of completed training or field qualification.
  • Existing staff time value is separate from new wage payments.

Transport and cold chain
Vehicles and equipment

Vehicles, cold boxes, net available cooling packs and cold supply enable delivery and disruption response.

Equipment and supply requirements
  • Alternative roads and backup resources must already exist in the configuration.
  • Heat stress tests use declared synthetic parameters. Ambient temperature does not create new equipment-performance evidence.
  • Insufficient cold supply leaves gaps. Missing evidence remains unassessed.

Cost and data requirements
Accounting and evidence

Separate run cash, first-year cash, later annual cash and economic cost to understand the price of retaining service.

Accounting and proposed funding

Current activity cash appears after result verification.

The annual workload assumes 48 rounds. Rupee costs are calculated after solving and do not reselect routes. Payers are proposed; full clinical and procurement costs remain incomplete.

Compare annual costs and investment →

JHARKHAND / CASE EXPLORER

Three cases. Three tests of one planning method.

These structured demonstrations make the algorithm’s decisions and computational feasibility inspectable: one village, difficult household access, and a shared multi-village network. Each tests the same method under a different planning challenge.

An independently audited plan shows feasibility for its declared inputs and constraints. Explore how the method responds, which service it can retain and where gaps remain. The synthetic cases have different purposes and scales; service totals do not rank them, and their outcomes do not predict another village’s results.

Geographic explorerIndia Jharkhand
JHARKHAND · PLACE REFERENCES Approximate place references · north up
Dots use your supplied place coordinates; they do not identify surveyed service facilities. Solver sites and roads remain synthetic.
Relief: USGS / Mapzen · Boundary: Natural Earth · Locality cross-check: GeoNames (CC BY 4.0)
Map sources & scope ↗

Choose a case on the map or in the list.

01 Choose a place02 Enter your demand03 Inspect the plan

A REUSABLE METHOD / LOCAL CONFIGURATION

How another village can build on these cases.

Use a matching case as a planning structure. Replace it with local conditions, then compute and validate a fresh result.

01 / MATCH THE CHALLENGE

Choose a starting structure

Use C1 for a single service location, C2 when household access is the main constraint, or C3 when several villages share resources. These patterns can be combined when local needs overlap.

02 / CONFIGURE THE PLACE

Replace the local conditions

Supply local demand, session locations and windows, road travel and closures, household journeys, stock, staff, vehicles, cold-chain performance and budget assumptions.

03 / COMPUTE AND VERIFY

Test a new plan

Recompute against a matching reference with the same local resources and disruption. Audit feasibility, inspect access and remaining gaps, check search limits and scale, then validate execution in a local pilot.

What can I change here, and what needs a new village configuration?

The current workspace lets you change demand, near/remote splits, session windows, ambient conditions and declared acceptance limits within each preset. Roads, stock, vehicles, staff and equipment still belong to that case. A real new-village deployment requires a complete local configuration through the model integration process; changing a place name does not replace those conditions.

Demand, sites and session windows
Define who needs service, where it can happen and when.
Supply points, roads, travel times and closures
Define which routes can actually connect supply and service.
Inventory, staff, vehicles and cold-chain evidence
Define physical availability, schedules, loading and protection limits.
Household journeys, targets and acceptance
Test whether planned service is reachable and what burden remains.
Budget, prices and operating responsibility
Assess resource affordability, cash requirements and implementation conditions.

Local input verification and a pilot are needed before claiming comparable field effects. Larger configurations also need runtime and search-capability checks. Unknown inputs remain missing; they are not filled with zero or copied outcomes.

Read the configuration and transfer scope →

The transferable result is the planning method. Another village receives its own calculation and evidence.

MODEL & EVIDENCE

Trace every important result to its evidence.

Costs, limits and missing data

Estimate scope and field-data gaps

Planned doses are not observed vaccinations. Household acceptance rules are declared assumptions. A temperature excursion does not automatically mean discard; loss-value sensitivity is not realized procurement saving.

The browser verifies the reviewed runtime parameter JSON. The complete original source snapshot is checked locally; workbooks and internal source documents are not published.

Cost, loss and value evidence guide →Cost parameters and sources CSV ↓Earlier frozen cases (historical) →