Project Overview
A UK courier network with 2,400 drivers, 84 depots, and 180,000 daily parcel deliveries needed a modern last-m...
Technology Stack
Compliance & Standards
The Challenge
A UK courier network with 2,400 drivers, 84 depots, and 180,000 daily parcel deliveries needed a modern last-mile delivery optimisation platform — replacing a legacy Paragon routing system (2009 installation) with dynamic routing, real-time driver tracking, and automated customer communications. UK GDPR for driver and customer data, ICO employment practices guidance (driver telematics), DVSA Working Time Directive compliance (driver hours), UK GDPR PECR (customer marketing consent), and Environment Agency ULEZ routing (London) were mandatory. Budget: £140,000.
Our Approach
Dynamic Route Optimisation Engine
Vehicle Routing Problem (VRP): 180,000 daily deliveries across 2,400 drivers.
Route optimisation
Google OR-Tools (open-source VRP solver) with custom constraints (time windows, vehicle capacity, driver break requirements, ULEZ zone avoidance).
Daily route generation
- previous day's orders ingested at 22:00, optimised routes generated by 04:00 (ready for driver app download).
- Real-time re-optimisation: failed delivery (no-one home, address not found) → immediate re-route for nearest available driver.
Route quality metric
average stops per route × average distance per stop — optimised daily.
Driver Mobile App and GPS Tracking
React Native cross-platform (iOS and Android — 2,400 drivers use both).
Driver workflow
route download (overnight), morning depot check-in, delivery sequence (map + address), POD capture (QR code scan or signature), failed delivery (reason code + photo), and end-of-shift upload.
GPS tracking
driver position polled every 30 seconds (AWS IoT Core + MQTT).
ICO employment practices guidance
driver tracking is employee monitoring — privacy notice at employment start, GPS data retained for 30 days only (minimum for dispute resolution), granular tracking (exact location) not continuous position log.
PECR
- customer SMS/email notifications require consent or legitimate interests (delivery notification is legitimate interests — clearly expected).
- GOV.
UK Notify
1-hour delivery window notification (SMS + email) sent when driver 1 stop away.
Failed delivery
immediate SMS/email with redelivery booking link.
Delivery confirmation
- photo POD + timestamp sent to customer on delivery.
- Customer self-serve: change delivery date, safe place instruction, collect from depot.
- All customer preferences stored (UK GDPR — consent mechanism for marketing, legitimate interests for operational communications).
WTD for road transport workers
maximum 48-hour average working week, minimum 30-minute break after 6 consecutive hours.
Platform
driver hours tracking (shift start/end, break periods, WTD weekly average calculation), automatic WTD breach alert (when driver approaches 48-hour limit), and WTD compliance report (monthly for fleet manager — DVSA audit evidence).
Tachograph integration
digital tachograph data import (for HGV drivers) via Volvo/Scania fleet management API — automated WTD cross-reference.
The Results
Platform live at 20 weeks, £128,000 — under budget.
Route optimisation: 18.4 stops/driver/day → 22.1 stops/driver/day (20% productivity improvement).
Failed delivery rate: 8.4% → 5.2% (1-hour window SMS reduces missed deliveries).
Driver GPS: 100% real-time tracking.
Customer satisfaction: 4.4/5 (previously 2.8/5 — customers complained about no ETAs).
DVSA WTD compliance: 100% automated monitoring (previously manual spreadsheet).
Fuel consumption: 6.4% reduction (optimised routing reduces unnecessary mileage).
“20% productivity improvement — 18.4 to 22.1 stops per driver per day. Across 2,400 drivers, that is transformative capacity. Failed delivery from 8.4% to 5.2% — the 1-hour window SMS works. Customer satisfaction from 2.8 to 4.4. DVSA WTD 100% automated. Fuel 6.4% down. The legacy Paragon system had been with us since 2009 — this is a different business." — COO, UK Courier Network (name withheld)”
Project Details
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