Table 2.

Studied specifics of developed/modified KPIs.

ID	KPI	Developed/Modified from KPI	Measured by/Indicative Data	Current Status	Goal	Derived from
KA1	Load Factor	Improved load factor	Ratio between average load and total vehicle capacity (expressed in vehicle km)	Various values (due to different values of cargo). The current value measured in pilot.	Load factor improvement	[30]
KA2	Total route length	Shortened XB parcel delivery times in e-commerce	Quality of service standards and route	/	25% improvement	/
KA3	Fuel consumption	Reduced XB parcel logistics delivery costs	Cost savings achieved	EMS Sl: up to 50 kg = EUR 75.16 IP Sl: up to 50 kg = EUR 24.02	5% reduction in costs	[26,31,32]
KA4	Response time upon ad hoc orders	Swifter response to changing customer needs improving customer satisfaction	Customer satisfaction	Various values (due to the unavailability of XB customer satisfaction measurements, new measures were set)	Improved customer satisfaction	[33]
KA5	Number of traffic events handled	Smart parcel/CLO growth	The volume of total smart-parcel services	4.69% (CRO to SLO) 18.70% (SLO to CRO)	30% increase	[34]
KA6	Number of parcel pick-up/delivery events handled	Swifter collection and delivery processes, with a more accurate time frame for pick-up and delivery	Quality of service standards and customer satisfaction	Various values (due to the unavailability of measurements of service quality, new measures were set in pilot)	Improved customer satisfaction	[33]
KA7	Total costs	Track and trace of parcels through the entire process of delivery, resulting in effective status monitoring both by postal operators and customers.	The success rate of providing track and trace (monitoring) data (real time)	Various values due to lack of monitoring XB track and trace success rate (established track and trace monitoring via existing data, tools, and infrastructure)	Above 95%	[35]