The document describes a case study of a topographic survey conducted in Dun Laoghaire using RPAS technology, which completed the survey in 10 days compared to 80 days for a ground crew. The advantages of the RPAS survey include increased safety, reduced traffic disruption, and higher quality data outputs in AutoCAD format for various engineering purposes. The conclusion highlights the potential for government agencies to save money and improve decision-making through the use of RPAS surveys in geographic data collection.

1. RPAS Topographic Survey at Dun
Laoghaire Town Centre and Harbour
- A Case study
P. Barry, R. Coakley of Baseline Surveys Ltd

2. Dun Laoghaire Harbour
• 16 km South East of Dublin Airport
• Congested Town Centre
• Population density: 2200/km2
• Live Train Station
• Busy Marina and Harbour

3. Dun Laoghaire Port Company
Requirements
• Topographic Survey
• +/- 25mm Accuracy
• Output in AutoCAD
To be used for Engineering Design
RPAS eliminated the need for all this!
• Traffic Safety Management
• Quayside safety management
• Rail Side Works Permit
• Access to Survey Private Property
Ground Survey Crew 80 days to Completion
RPAS Survey Crew 10 days to Completion
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4. Baseline History
• Engineering
Surveyor on tunnels,
roads and bridges.
• 2,500 Topographic
Surveys.
• Over 20 years of
experience.
• Legal Mapping Export.
The RPAS Flight was Carried out
Safely
• adapter of Survey
• Remote Pilot – RPA distance 1200m
• Flight over a Congested Town Centre
• An operational risk assessment was submitted
• The IAA Granted us the RPAS Aerial Works Permit
• Flight Altitude 120m Above Ground Level

5. MULTIPLE USES FROM ONE RPAS SURVEY
Digital Surface model for Flood Analysis
3D Point Cloud for Rail Design
Marine Works Detail in CAD
Road Design Information
Topographic Survey in CAD
Foreshore Data with Contours

6. Advantages of RPAS Surveys
• Completed in 10% of Ground Survey Time
• AutoCAD Output with Ground Survey Accuracy
• No Traffic Disruption
• Higher Quality Data
• Less Hazardous
• Data can be Recycled for Multiple Uses

7. 3rd
Party INSURANCE is Mandatory
In 2013 Baseline Surveys (20 flights) paid
€5,500 in premiums for 2 RPAS (4kg Fixed Wing + 2.8kg VTOL).
This is for a Single RPAS Operating Crew. (Ireland only)
In 2014 Baseline Surveys Paid €3,250 for 30 flights.

8. Conclusion
• European Government Agencies can now look forward to spending less
money on better Geographic Information, so they in turn can make better
informed decisions with less risk to life and less disruption to traffic by
using RPAS to carry out Topographic Surveys. This geographic data can
be recycled for multiple geographical analysis and design uses across a
range of government departments
• On behalf of Baseline Surveys Ltd I would like to thank the staff at the
Irish Aviation Authority for their very helpful and progressive attitude

9. Baseline Surveys Ltd
Mount Desert Lodge,
Lee Road,
Cork, Ireland.
Tel: +353862535285
paudie@baselinesurveys.ie

10. Baseline Surveys Ltd
Mount Desert Lodge,
Lee Road,
Cork, Ireland.
Tel: +353862535285
paudie@baselinesurveys.ie