This document provides an example of using an issue tree to analyze problems in food delivery transport. The area of analysis is transport, with two identified problems being high transport costs per ton of goods and high levels of waste and breakage during transport. Possible reasons for the problems include badly designed routes, too much fuel usage, no return shipments, low resource usage, fragile packaging, speed issues, poor work organization and scheduling, and delivery time limitations. The document outlines various analyses that could be performed to investigate the suspected problems and their possible causes, such as analyzing packaging and damage rates, transport times and distances, designed routes and potential changes, and fuel usage.
2. Issue Tree – General Example
Area of analysis
Area 1
Problem 1
Problem 2
Possible Reason 1
Possible Reason 2
Possible Reason 3
Possible Reason 4
Possible reasonsSuspected problems
Analysis 1
Analysis 2
Analysis 3
Analysis 4
Analysis to be performed
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3. Issue tree – example Food delivery
Area of analysis
Transport
High costs of transport per ton of
goods
Big level of waste and breakage in
transport
Possible reasons
Suspected problems
Analysis to be performed
Analysis of correlation between type of
packaging and percentage of damaged
Analysis of time spent on the way and
kilometers covered in that time
Analysis of designed routes, their length
and the influence of possible changes
Analysis of fuel usage and kilometers
covered by vehicles
Analysis of load carried on the way back
Badly designed routes
Too big fuel usage
No shipments on the way back
Low usage of resources
Badly designed method of packaging which
makes the product prone to damage
Speed not adjusted to the product
Badly organized work and schedule of
deliveries
Limitation on delivery time of finished
goods
Analysis of level of overtime, daily
organization of drivers work
Analysis of Clients’ preferences on delivery
time
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