FEATURE
INGENIEUR
FEATURE
INGENIEUR
Effects of using Sidra 6.0 Software on Signalised Intersections at Bukit Chedang , Seremban
By Azizah Tukiman , Universiti Kebangsaan Malaysia Zulzana Zulkarnain , Politeknik Port Dickson Ir . Suhaizad Sulaiman , Jabatan Kerja Raya Malaysia
T- Intersection Bukit Chedang
Most congested road at Bukit Chedang ure
Figure
1.1 : Study
1.1 area at
: Study
Bukit Chedang area
, Rasah at
Seremban
Bukit Chedang
N . Sembilan Source
, Rasah
: Google E
Seremban N . Sembilan Source : Google Earth 2014
The Signalised Intersection Design and Research Aid ( SIDRA ) software is an assistant for capacity , timing , capacity and performance analysis of isolated intersections . Delay at signalised intersections reflects incompetence in signal timing because of consecutive signalised intersections on the particular site . It also represents a direct cost in terms of fuel consumption during inactivity and idleness on road networks . Furthermore , one of the significant ways to improve the performance of a network is by co-ordinating traffic signals at intersections . This study was done to highlight capacity to improve the level of service ( LOS ) of three leg intersections on Bukit Chedang , Seremban using SIDRA software version 6.0 .
In addition , the study aimed to compare the results between an average delay , queue distance , travel speed , degree of saturation , performance index , fuel consumption and total CO 2 emission before and after the upgraded traffic flow in the study area . The data required for the study was mainly collected through video filming techniques . The calculations and simulations were constructed with the SIDRA software version 6.0 which is used to design and analyse roundabout and intersection conditions . The results obtained showed that with the addition of a new lane and / or a slip lane at all critical positions , the LOS can be improved to a much better grade ( from F to C ). However , the value of delay , queue , performance index , fuel consumption , total CO 2 emission and speed was also much improved after optimisation by the SIDRA software . The average reduction is delay time before and after optimisation was from 224.3 sec to 25.0 sec ( 88.9 %), the speed on the road improved from 7.9 km / hr to 28.6 km / hr ( 72.4 %), the performance index was reduced by up to 83.4 % and fuel consumption decreased from 269.6 l / hr to 96.3 l / hr ( 64.4 %). SIDRA software will be beneficial for traffic planners in making judicious decisions regarding control type at intersections .
42 VOL 74 APRIL-JUNE 2018