The Highway Is a Pasture

Description and use

Longplay adapts Spotify playlists based on vehicle telemetry to reduce driver monotony and improve experience, though safety benefits are unverified.

Problem

Drivers experience monotony on long highway trips, leading to attention drift and potential safety risks. The challenge is to maintain engagement without adding distraction.

Outcome

The system adapted playlists to driving context, with anecdotal observations of reduced aggression in traffic jams and a calmer night drive. No objective safety metrics were collected, so effectiveness remains unproven.

Workflow

• Read telemetry from Tesla Fleet API
• Extract pace, ETA, journey phase, and moments
• Generate deterministic musical brief
• Create candidate list via language model
• Score candidates with weighted factors (confidence, contextFit, telemetryFit, tasteFit, diversityGain, novelty, fatiguePenalty)
• Resolve tracks on Spotify
• Append selected tracks to playback queue without interrupting current song

Evidence

When recent telemetry snapshots show increasing route delay and stop‑and‑go movement, deterministic rules change the musical brief.

Source

Preferred music may limit reported driver stress in highly congested traffic, while making little difference under low congestion.

Source