The objective of the trial is to test the hypotheses that:
- the roughness of Principal Shared Paths (PSPs) will be an accurate and quantifiable way of verifying the condition of PSPs
- a roughness assessment can be conducted to an appropriate level of accuracy using the accelerometers in a mobile phone via an app such as RoadRoid attached to a mobility scooter
- conducting a roughness assessment will be a viable alternative to conducting visual assessments (essentially that it will produce results that can be relied on at an acceptable cost).
This will be tested by hiring a mobility scooter and attaching a mobile phone running RoadRoid to obtain roughness data. The data can then be compared with previous visual inspection reports to determine whether roughness can be used as a proxy for condition.
- Data pickup using a mobility scooter and phone with RoadRoid app
- Conversion from lat/long co-ordinates to SLK referencing system
- Evaluation of effectiveness using roughness data from RoadRoid as a condition assessment. Evaluation likely to consider:
- Previous Visual Condition Assessment (data around 12 months old)
- Roughness data from RoadRoid
- Alignment of data taken on the same PSPs in different directions
- Photos taken from RoadRoid
Further extension activities to be explored as/if appropriate.
Depending on the candidate’s skillset, possible extensions include but are not limited to: stochastic modelling for PSP pavement deterioration, computer vision models for detecting damages caused by tree roots, comparisons with raw data from accelerometers, optimisation of maintenance schedules and self-drive robot for data collection.