Compare stop order using time-specific travel estimates

Why use this

1. A person arranging several city stops may choose the order that looks shortest on a map, even though travel estimates depend on departure time and direction. Ignoring time spent at each stop can make later legs use the wrong conditions.

2. A comparison sheet could show which sequences were evaluated and what assumptions produced the preferred option. The result would be the lowest estimate among the compared choices, rather than a guarantee about the actual journey.

Why an agent / simpler alternative

Useful judgment

Keep stop constraints and time assumptions consistent across alternative orderings.

Simpler alternative

Use a route planner directly when stop order is fixed or only two destinations are involved.

Unsuitable when

Required arrival windows or travel-mode constraints are missing.

Proposed inputs

1. Name

   Trip constraints

   Owner

   Traveller

   Minimum scope

   Three stops, origin, departure time, travel mode and required windows

   Quality check

   Verify exact locations and local time.

2. Name

   Travel-estimate snapshots

   Owner

   Approved routing source

   Minimum scope

   Per-leg estimates with query times and stated assumptions

   Quality check

   Check whether traffic estimates correspond to each leg’s departure.

Access and setup — proposed or unknown

Proposed minimum

1. Supplied or approved read-only route estimates; private comparison.

Compatibility unknowns

1. Unknown: exact runtime, routing access, time-dependent estimates and regional coverage.

External actions requiring approval

1. Sharing private destinations with routing services or changing bookings and appointments.

Expected deliverable and review checks

Proposed artifact

Compared-order table with leg estimates, stop durations and a qualified preferred sequence.

Critical checks

1. All candidates use the same mandatory constraints.

2. Uncompared sequences and uncertain travel conditions remain explicit.

Missing output evidence

No live route query or journey-timing validation occurs in this overlay.

Failure signals and proposed responses

1. Signal

   Every leg is queried at the initial departure time.

   Why it matters

   Later travel conditions may be represented incorrectly.

   Proposed response

   Include stop durations and recalculate the intended leg-departure assumptions.

2. Signal

   The quickest sequence misses a required arrival window.

   Why it matters

   The numerically best route may be unusable.

   Proposed response

   Exclude infeasible sequences before comparing estimated travel time.

Effort and cost — unknown

Setup work

1. Confirm stop identities and timing constraints.

Ongoing review

1. Refresh estimates near departure when appropriate.

Unknowns

1. Unknown: traffic variability, routing costs and actual stop duration.

First check — proposed, unexecuted

Status

proposed_unexecuted

Synthetic fixture

Invented route estimates include a fastest order that misses a required visit window and a feasible slower order.

Acceptance checks

1. The infeasible order cannot be recommended.

2. The preferred option names its estimate assumptions.

Stop conditions

1. A private-location disclosure or missing time constraint is unresolved.

Limits

1. Editorial routing comparison; estimated time is not a promised arrival.