COVER PAGE

INTRODUCTION

OBJECTIVES

LITERATURE REVIEW

The capacity of each entry to a roundabout is the maximum rate at which vehicles can reasonably be expected to enter the roundabout from an approach during a given time period under prevailing traffic and roadway (geometric condition) (HCM 2000).

METHODOLOGY

Site visit

We took a site visit and

Manual traffic counts

Traffic counts for 12 different movements V1 – V12, and 4 circulating movement VC1 – VC4 were done for 15 minutes interval for 2 hours.

Geometric measurements

The analysis method requires the specification of traffic volumes for each approach to the roundabout, including the flow rate for each directional movement. Volumes are typically expressed in passenger car unit per hour (vph), for a specified 15 – minute analysis period. To convert other vehicle types to passenger car units, use the conversion factors below.

Motorised PCUSaloon cars and taxis 1Light goods (vans, pickups and 4WDs) 1Small bus:Minibuses and Matatus 1.15Medium bus:coaster 1.5Buses 2.4

From Mortuary

From Kubiri/Kakande

From old Mulago

From Wandegeya

Light single unit trucks, lorries 2.5Medium - Large Single Unit Trucks 2.8Truck trailers and semitrailers 4Motorcycles 0.4

RESULTS

ANALYSIS

CHALLENGES

APPENDIX