| # Google Directions traversal-time archive — UIUC campus OD pairs (Apr 23 – Apr 29 2026) |
|
|
| 60-second polling of the Google Directions API on 8 fixed origin-destination |
| pairs across the UIUC campus, intended for transit-corridor traversal-time |
| analysis under varying pedestrian and traffic load. |
|
|
| Window: **2026-04-23 ~22:00 UTC → 2026-04-29 23:42 UTC** (~5 days live data). |
|
|
| ## OD pairs (each polled bidirectionally) |
|
|
| | pair label | A | B | |
| |---|---|---| |
| | `union-engquad` | Illini Union | Engineering Quad (Grainger area) | |
| | `arc-mainquad` | Activities & Recreation Center (ARC) | Main Quad | |
| | `ikenberry-everitt` | Ikenberry Commons | Everitt Lab | |
| | `isr-union` | Illinois Street Residence Halls (ISR) | Illini Union | |
|
|
| 8 queries per cycle (4 pairs × 2 directions), 60 second cadence ⇒ ~11.5K |
| calls/day, ~70K calls total. |
|
|
| ## Layout |
|
|
| ``` |
| {YYYY-MM-DD}/{HH}.jsonl # one JSON record per query |
| ``` |
|
|
| Each line: |
|
|
| ``` |
| {"ts": "...", "od_pair": "union-engquad", "direction": "AB", |
| "duration_s": 542, "distance_m": 1180, "summary": "Wright St", |
| "raw_response_bytes": 4321, "dry_run": false, "err": null} |
| ``` |
|
|
| ## Provenance & license |
|
|
| - Source: Google Directions API responses, polled via authorized API key on |
| a Google Cloud project owned by the archiver. |
| - Archived by Darsh Poddar, UIUC undergrad, for academic research on UIUC |
| bus-delay prediction. Code: https://github.com/drPod/data-dive |
| - License: CC-BY 4.0 for the archived metrics. Note: this dataset contains |
| derived metrics (durations, distances) only — no raw Google response |
| bodies and no Google IP — so it should not raise Google Maps Platform |
| Terms of Service concerns. If you republish, please acknowledge the |
| Google Directions API as the upstream source. |
|
|
| ## Citation |
|
|
| ``` |
| Darsh Poddar (2026). Google Directions traversal-time archive — UIUC |
| campus OD pairs. Hugging Face. dr-pod/data-dive-google-directions. |
| ``` |
|
|
| ## MTD attribution |
|
|
| This dataset uses data from the Champaign-Urbana Mass Transit District (CUMTD / MTD). |
| Per the [MTD API Terms of Use](https://developer.mtd.org/terms), any use of MTD data |
| must include the following identification: |
|
|
| > Data provided by the Champaign-Urbana Mass Transit District (CUMTD). |
| > For more information, visit [mtd.dev](https://mtd.dev). |
|
|
