| name | fleet-intelligence-taxis |
| description | Generate realistic taxi driver location data for the Fleet Intelligence solution using Overture Maps data and OpenRouteService for actual road routes. Also supports Data Studio projection views from SYNTHETIC_DATASETS.UNIFIED for any vehicle type via CONFIG table. Configurable location (New York, London, San Francisco, etc.), number of drivers (default 80), days of simulation (default 1), and shift patterns. Use when: setting up driver location data, generating route-based simulation, deploying fleet dashboard. Do NOT use for: food delivery simulation (use fleet-intelligence-food-delivery), route deviation analysis (use route-deviation), or route optimization demos. Triggers: generate driver locations, create driver data, setup fleet data, fleet intelligence dashboard. |
| depends_on | ["build-routing-solution","routing-customization"] |
| metadata | {"author":"Snowflake SIT-IS","version":"1.0.0","category":"fleet-intelligence"} |
Generate Driver Locations & Deploy Fleet Intelligence Dashboard
Generates realistic taxi driver location data using Overture Maps Places/Addresses, OpenRouteService Native App routing, route interpolation, and configurable location/fleet size. Also provides Data Studio projection views that read from SYNTHETIC_DATASETS.UNIFIED filtered by CONFIG table (vehicle type + region), making it compatible with any synthetic dataset.
IMPORTANT: Location Must Match OpenRouteService Configuration
Before selecting a location, verify your OpenRouteService Native App is configured for that region.
Read and follow .cortex/skills/routing-customization/SKILL.md if a map change is needed.
Configuration Parameters
| Parameter | Default | Description |
|---|
LOCATION | New York | City/region for the simulation |
NUM_DRIVERS | 80 | Total number of taxi drivers |
NUM_DAYS | 1 | Number of days to simulate |
START_DATE | 2015-06-24 | First day of simulation |
WAREHOUSE_SIZE | MEDIUM | Warehouse size for data generation |
Supported Locations (Pre-configured)
| Location | MIN_LON | MAX_LON | MIN_LAT | MAX_LAT | Center LON | Center LAT | Notes |
|---|
| San Francisco | -122.52 | -122.35 | 37.70 | 37.82 | -122.42 | 37.77 | |
| New York | -74.05 | -73.90 | 40.65 | 40.85 | -73.97 | 40.75 | Manhattan focus |
| London | -0.20 | 0.05 | 51.45 | 51.55 | -0.12 | 51.51 | Central London |
| Paris | 2.25 | 2.42 | 48.82 | 48.90 | 2.35 | 48.86 | Central Paris |
| Chicago | -87.75 | -87.55 | 41.80 | 41.95 | -87.63 | 41.88 | Downtown |
| Los Angeles | -118.35 | -118.15 | 33.95 | 34.15 | -118.25 | 34.05 | Central LA |
| Seattle | -122.45 | -122.25 | 47.55 | 47.70 | -122.33 | 47.61 | Downtown |
| Boston | -71.15 | -70.95 | 42.30 | 42.40 | -71.06 | 42.36 | Central Boston |
| Sydney | 151.15 | 151.30 | -33.92 | -33.82 | 151.21 | -33.87 | CBD area |
| Singapore | 103.75 | 103.95 | 1.25 | 1.40 | 103.85 | 1.35 | Central |
Recommended Warehouse Sizes
| Drivers | Days | Estimated Rows | Warehouse | Est. Time |
|---|
| 20 | 1 | ~4,000 | SMALL | 2-3 min |
| 80 | 1 | ~18,000 | MEDIUM | 5-8 min |
| 80 | 7 | ~125,000 | LARGE | 20-30 min |
| 200 | 1 | ~45,000 | LARGE | 15-20 min |
| 200 | 7 | ~315,000 | XLARGE | 45-60 min |
| 500 | 7 | ~800,000 | XLARGE | 2-3 hours |
Prerequisites
- Snowflake Account with appropriate privileges
- OpenRouteService Native App installed from Snowflake Marketplace (configured for target region)
- Overture Maps Data -- auto-installed in Step 3b if missing. Requires IMPORT SHARE privilege.
Required Privileges
| Privilege | Scope | Reason |
|---|
| CREATE DATABASE | Account | Creates FLEET_INTELLIGENCE database |
| CREATE WAREHOUSE | Account | Creates ROUTING_ANALYTICS warehouse |
| CREATE SCHEMA | Database (FLEET_INTELLIGENCE) | Creates FLEET_INTELLIGENCE_TAXIS schema |
| CREATE TABLE | Schema | Creates location, driver, trip, and route tables |
| CREATE VIEW | Schema | Creates 5 analytics views |
| USAGE ON DATABASE OPENROUTESERVICE_APP | DATABASE | Calls DIRECTIONS function for routing |
| IMPORTED PRIVILEGES ON OVERTURE_MAPS__PLACES | Database | Reads POI locations |
| IMPORTED PRIVILEGES ON OVERTURE_MAPS__ADDRESSES | Database | Reads address data |
Note: ACCOUNTADMIN is NOT required. Create a custom role with the above privileges.
Error Logging
Follow the Error Logging convention in AGENTS.md. Log file prefix: fleet-intelligence-taxis.
Quick Start
The fastest path to a working demo. Creates projection views over SYNTHETIC_DATASETS.UNIFIED tables (loaded by build-routing-solution Step 8). No ORS calls needed.
Quick check
SELECT COUNT(*) FROM FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.TRIP_SUMMARY;
Note: Seed data uses vehicle_type=ebike (San Francisco E-Bike Couriers). The CONFIG table is set to ebike/SanFrancisco accordingly. To see realistic taxi data, generate a new dataset via Data Studio with a taxi/driving-car profile.
Create views
Execute references/seed-data.sql. This creates CONFIG, VW_DRIVER_LOCATIONS, VW_TRIP_SUMMARY, and 5 wrapper views (TRIP_SUMMARY, DRIVER_LOCATIONS_V, ROUTE_NAMES, TRIP_ROUTE_PLAN, TRIPS_ASSIGNED_TO_DRIVERS) over UNIFIED data.
Generate data for other regions (optional)
To generate data for a region other than San Francisco, use the full pipeline starting at Step 2.
Or use the centralized provisioner:
CALL FLEET_INTELLIGENCE.CORE.PROVISION_REGION('<RegionName>', ARRAY_CONSTRUCT('fleet-intelligence-taxis'));
Workflow
Execute each step in order using snowflake_sql_execute. Substitute {PLACEHOLDER} values based on the user's chosen configuration before executing.
Read references/sql-pipeline.md for complete SQL for every step below.
CRITICAL: Execution Rules
- One statement per
snowflake_sql_execute tool call. Multi-statement blocks can silently fail. This rule applies to the snowflake_sql_execute tool only; snow sql -f and other CLI execution is fine.
- Always use fully qualified object names (
FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.<object>). Session context from USE statements does not persist across calls.
- Never use
SET session variables. Substitute literal values directly into SQL.
- Verify row counts after each CTAS.
- All CREATE statements must include a COMMENT tracking tag per AGENTS.md convention:
COMMENT = '{"origin":"sf_sit-is-fleet","name":"oss-fleet-intelligence-taxis",...}'. See references/sql-pipeline.md for tagged SQL.
Step 1: Set Query Tag
Execute:
ALTER SESSION SET query_tag = '{"origin":"sf_sit-is-fleet","name":"oss-fleet-intelligence-taxis","version":{"major":1,"minor":0},"attributes":{"is_quickstart":1,"source":"sql"}}';
Step 2: Detect ORS Configuration, Choose Location, Verify Services
- Describe ORS service to extract configured
<REGION_NAME> from volume source path.
- Download ORS config and parse enabled routing profiles. Follow
.cortex/skills/routing-customization/read-ors-configuration/SKILL.md.
- Ask user which location to use — recommend the currently configured region first.
- Check region match — if mismatch, user must reconfigure ORS via
.cortex/skills/routing-customization/SKILL.md.
- Check/resume services — run
SHOW SERVICES IN OPENROUTESERVICE_APP.CORE and resume any suspended services.
- Test ORS routing with a DIRECTIONS call using center coordinates of the target city.
Step 3: Configure Database, Warehouse, and Schema
Pre-check: If data already exists, skip to Step 9. Run:
SELECT COUNT(*) AS cnt FROM FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.TAXI_LOCATIONS_INTERPOLATED;
If cnt > 0, the data pipeline has already run. Skip to Step 9 (analytics views) or Step 10 (Streamlit deployment) as needed.
Create FLEET_INTELLIGENCE database, ROUTING_ANALYTICS warehouse, and FLEET_INTELLIGENCE_TAXIS schema.
Step 3b: Check & Install Overture Maps Datasets
Check if Overture Maps datasets are accessible:
SELECT COUNT(*) FROM OVERTURE_MAPS__PLACES.CARTO.PLACE LIMIT 1;
SELECT COUNT(*) FROM OVERTURE_MAPS__ADDRESSES.CARTO.ADDRESS LIMIT 1;
If either fails, install from Marketplace:
CALL SYSTEM$ACCEPT_LEGAL_TERMS('DATA_EXCHANGE_LISTING', 'GZT0Z4CM1E9KR');
CREATE DATABASE IF NOT EXISTS OVERTURE_MAPS__PLACES FROM LISTING GZT0Z4CM1E9KR;
CALL SYSTEM$ACCEPT_LEGAL_TERMS('DATA_EXCHANGE_LISTING', 'GZT0Z4CM1E9NQ');
CREATE DATABASE IF NOT EXISTS OVERTURE_MAPS__ADDRESSES FROM LISTING GZT0Z4CM1E9NQ;
STOP if install fails -- requires IMPORT SHARE privilege.
Step 4: Create Base Locations (TAXI_LOCATIONS)
CTAS combining POIs from OVERTURE_MAPS__PLACES.CARTO.PLACE and addresses from OVERTURE_MAPS__ADDRESSES.CARTO.ADDRESS filtered by the bounding box. Verify counts by SOURCE_TYPE.
Step 5: Create Drivers with Shift Patterns (TAXI_DRIVERS)
CTAS with 5 shift patterns (Graveyard, Early, Morning, Day, Evening). Default 80 drivers: 8/18/22/18/14. Verify driver counts per shift.
Step 6: Generate Trips
- Materialize
TAXI_LOCATIONS_NUMBERED with stable row numbers.
- Create
DRIVER_TRIPS — trip assignments with hour/pickup/dropoff location IDs. Trip counts vary by shift.
- Create
DRIVER_TRIPS_WITH_COORDS — join trips with coordinate geometry.
- Verify trip distribution per shift.
Step 7: Generate ORS Routes
WARNING: This step makes many ORS API calls. ~1,000 trips: 3-5 min, ~5,000: 15-20 min.
- Create
DRIVER_ROUTES — call OPENROUTESERVICE_APP.CORE.DIRECTIONS for each trip.
- Create
DRIVER_ROUTES_PARSED — extract geometry, distance, duration from JSON response.
- Create
DRIVER_ROUTE_GEOMETRIES — add cumulative timing with {START_DATE}.
- Verify route statistics.
Step 8: Create Driver Locations (DRIVER_LOCATIONS)
Interpolate 15 points per trip along route geometry with driver states (waiting, pickup, driving, dropoff, idle) and realistic speeds varying by time of day (rush hour, overnight, normal). Verify point counts and speed distributions.
Step 9: Create Analytics Views
Create 5 analytics views:
DRIVER_LOCATIONS_V — locations with LAT/LONTRIPS_ASSIGNED_TO_DRIVERS — trip assignments with geometryROUTE_NAMES — origin→destination labelsTRIP_ROUTE_PLAN — full trip details with ROUTE JSONTRIP_SUMMARY — route geometries with avg/max speed
Verify all view row counts.
Dashboard Schema Contract
The React Demo Dashboard pages query these exact tables and columns. If the pipeline changes column names, the React pages must be updated to match.
TRIP_SUMMARY (view)
| Column | Type | Used By |
|---|
| DRIVER_ID | VARCHAR | FleetOverview, DriverRoutes, HeatMap |
| TRIP_ID | VARCHAR | FleetOverview, DriverRoutes |
| ORIGIN | GEOGRAPHY | FleetOverview (ST_X/ST_Y), DriverRoutes, HeatMap (H3) |
| DESTINATION | GEOGRAPHY | FleetOverview (ST_X/ST_Y), DriverRoutes |
| ROUTE_DISTANCE_METERS | FLOAT | FleetOverview, DriverRoutes (/ 1000 for km) |
| ROUTE_DURATION_SECS | FLOAT | FleetOverview, DriverRoutes (/ 60 for min) |
| TRIP_START_TIME | TIMESTAMP | FleetOverview (HOUR), HeatMap (HOUR filter) |
| AVERAGE_KMH | FLOAT | DriverRoutes, HeatMap |
| ORIGIN_ADDRESS | VARCHAR | DriverRoutes (AI analysis) |
| DESTINATION_ADDRESS | VARCHAR | DriverRoutes (AI analysis) |
DRIVER_LOCATIONS_V (view)
| Column | Type | Used By |
|---|
| LON | FLOAT | DriverRoutes (GPS track), HeatMap (driver dots) |
| LAT | FLOAT | DriverRoutes (GPS track), HeatMap (driver dots) |
| TRIP_ID | VARCHAR | DriverRoutes (GPS filter) |
| CURR_TIME | TIMESTAMP | DriverRoutes (time display), HeatMap (hour filter) |
| KMH | FLOAT | DriverRoutes (speed chart) |
| DRIVER_STATE | VARCHAR | DriverRoutes (state display) |
| POINT_INDEX | NUMBER | DriverRoutes (ordering) |
| DRIVER_ID | VARCHAR | HeatMap (driver dots) |
Examples
Example 1: Quick deploy with seed data
User says: "Set up the taxi fleet dashboard"
Actions:
- Run
references/seed-data.sql to create projection views over UNIFIED tables
- Verify TRIP_SUMMARY view returns rows
Result: Fleet dashboard shows San Francisco e-bike courier data via projection views (~2 min)
Example 2: Full generation for New York
User says: "Generate taxi data for New York with 80 drivers"
Actions:
- Verify ORS is configured for New York (Step 2)
- Create database/schema (Step 3), install Overture Maps (Step 3b)
- Create base locations from Overture POIs (Step 4), drivers (Step 5), trips (Step 6)
- Generate ORS routes (Step 7), interpolate locations (Step 8)
- Create analytics views (Step 9)
Result: 80 taxi drivers with ~18,000 realistic GPS points across New York (~8 min)
Troubleshooting
| Issue | Solution |
|---|
| ORS routes returning NULL | Location outside ORS configured region — verify map data |
| ORS routes failing | Verify OpenRouteService Native App is installed and running |
| No locations found | Bounding box may be too restrictive or outside Overture coverage |
| Out of memory | Use larger warehouse or batch processing |
| Missing Overture data | Install shares from Snowflake Marketplace |
| Dashboard shows no data | Verify TRIP_SUMMARY view returns rows; check column names match React expectations |
Cleanup
To remove all objects created by this skill:
DROP VIEW IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.TRIP_SUMMARY;
DROP VIEW IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.TRIP_ROUTE_PLAN;
DROP VIEW IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.ROUTE_NAMES;
DROP VIEW IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.TRIPS_ASSIGNED_TO_DRIVERS;
DROP VIEW IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.DRIVER_LOCATIONS_V;
DROP TABLE IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.DRIVER_LOCATIONS;
DROP TABLE IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.DRIVER_ROUTE_GEOMETRIES;
DROP TABLE IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.DRIVER_ROUTES_PARSED;
DROP TABLE IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.DRIVER_ROUTES;
DROP TABLE IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.DRIVER_TRIPS_WITH_COORDS;
DROP TABLE IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.DRIVER_TRIPS;
DROP TABLE IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.TAXI_LOCATIONS_NUMBERED;
DROP TABLE IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.TAXI_DRIVERS;
DROP TABLE IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS.TAXI_LOCATIONS;
DROP SCHEMA IF EXISTS FLEET_INTELLIGENCE.FLEET_INTELLIGENCE_TAXIS;
Tip: Use the cleanup skill to auto-discover all tagged objects via COMMENT tracking.
