1. Mwanzia John Musyimi F19/2459/2009 Supervisor: Mr.Mwenda
MAPPING ENCROACHMENT ON ROAD RESERVES A CASE STUDY OF KIKUYU-NDERI ROAD (E1507)
Mwanzia John Musyimi
F19/2459/2009
Supervisor: Mr.Mwenda

2. OUTLINE OF PRESENTATION
Introduction
Background of the study
Problem statement
Objectives of the study
Area of study
Methodology
Data and their sources
Materials and their sources
Overview of methodology
Results and interpretation
Conclusions and recommendations

3. Introduction Background of the study
a road- a long narrow stretch with smoothed or paved surface made for travelling by vehicles and carriage between two or more points
A road reserve- a strip of public land between abutting property boundaries specifically gazetted for the provision of public right of way
Encroachment- unlawful entering, gradually and without permission upon the land, property, other possessions or rights of another

4. Problem statement Many cases of encroachment on road reserves
Increased traffic jams due to reduced road width
Controversy between government and members of public on issues of encroachment
Encroachment on road reserves interferes with development and maintenance of roads

5. Objectives of the study
General objective
To assess the extent of encroachment on the road reserve of the study road
Specific objectives
To demonstrate the application of AutoCAD and GIS in mapping encroachment on road reserves
To develop a road reserve map of the study road
To recommend ways to reduce encroachment on road reserves

6. Area of study

7. Area of study(cont’d)
Kikuyu-Nderi road is a 4km road found in Kikuyu Township, Kikuyu constituency which is in Kiambu County.
It starts from Kikuyu town all the way to Sigona near Sigona golf club where it joins Nairobi-Nakuru-Malaba road
It lies within the following graticules:
latitudes 0˚22’28.18’’S and 0˚22’36.34’’S
longitude 36˚53’53.64’’E and 36˚53’50.05’’E.

8. Methodology data and their sources
CHARACTERISTICS
SOURCE
Topographic data
Excel sheet
Topographic survey
Registry Index map
Digital form, scale 1:2500
Kenya Rural Roads Authority
Survey plan
Digital form, scale 1:5000
Image
Geo eye image
Google earth

9. Softwares used Software Source Purpose AutoCAD 2010
KeRRA
Plotting the outline of the road
Global Mapper version 11.0
Georeferencing RIM, Survey plan and the image
ArcGIS (ArcMap version 10.0)
Analysis of data
Microsoft Excel
Microsoft
Presenting and editing topographic survey data
Microsoft Word
Report writing

10. Materials and equipment used
Source
Purpose
Total station
(Nikon)
KeRRA
Carrying out topographic survey of the area of study
Laptop
(Dell, Core i5, 4gb RAM 2.4GHz)
Personal
Data editing, manipulation, analysis, and report writing.
Measuring tape
Measuring short distances during topographic survey.

11. Overview of methodologyno
yes
Data identification
Spatial data
data collection and capture
Non-spatial data
Data preparation, processing and verification e.g. road drawing,georeferencing,editing
Data correct?
Road reserve map
Results and interpretation

12. Results and interpretation Layout of digitized parcels

13. Road reserve map

14. Parcels that have encroached
Parcel
Extent of encroachment in terms of area in square metres 1
Muguga Gitaru 486 2
Muguga Gitaru 297 3
Muguga Gitaru 16 4
Muguga Gitaru 301 5
Muguga Gitaru 690
118.31 6
Muguga Gitaru 691 7
Muguga Gitaru 692 8
Muguga Gitaru 693 9
Muguga Gitaru 694 10
Muguga Gitaru 143 11
Muguga Gitaru 477 12
Muguga Gitaru 265 13
Muguga Gitaru 438 14
LR 4871/15 15
LR 4871/14 16
LR 4871/13 17
LR 4871/12 18
LR 4871/11

15. Parcels that have been encroached by the road
Parcel
Extent of encroachment of road onto the parcel in square metres
LR 4955/2
LR 4871/3
LR 4871/4
LR 4871/5
LR 4871/12
LR 4871/13
LR 4871/14
LR 4871/15

16. conclusion The following conclusions were made
The road reserve of the study road has been encroached
There are sections which are completely encroached
There is road re-alignment whereby the road has encroached land parcels
The most encroached sections are those with general boundary
Sections with fixed boundaries have less encroachment

17. Recommendations
there is urgent need for action to be taken on those who have encroached the road reserve
Those affected by road re- alignment to be compensated
All road reserves to be mapped and protected and if possible made available online
Sensitize members of the public about the role of road reserves and the legal implication of encroachment on public land
Update all records dealing with roads such as RIMs and survey plans

18. Thank you