The Comparison of a Roundabout Traffic Delay Estimation between SUMO and IHCM 1997 on Roundabout
Abstract: Transportation is an
important sector to support the development of countries in terms of highway
design, road systems and traffic management. As users of transport
infrastructure, human has close relationship to the field of transportation.
Their driving behavior affects vehicle movements and may cause conflicts. In
order to investigate the conflicts such as traffic delay, there are two
different calculation methods using SUMO software and IHCM 1997 manually. The
objective of this research is to compare the calculation methods of traffic
delay using IHCM 1997 and SUMO which more appropriately with the actual
condition.
The research location is in Idröttsparken roundabout, Norrköping, Sweden
which has four arms. The data collection is conducted during three days in the
morning and afternoon. Types of data collection in this research were traffic
flow and its turning, travel time and queue length. The queue length data is
converted into traffic delay data for observation data. In SUMO, the traffic
delay value is the mean halting duration. In IHCM 1997, the calculation of
traffic delay needs several data i.e. roundabout geometric, capacity, and
degree of saturation. To analyze data, the statistical method is used i.e.
normality test, parametric and non-parametric test and also linear regression
method.
The result showed the traffic delay in observation data is higher than
delay in SUMO result and IHCM 1997 calculation. The statistical results showed
that the traffic delay of SUMO, and IHCM 1997 have no similarities to the
observation. Furthermore, from the linear regression result, only SUMO result
has the highest value for determination coefficient (R2) compared to IHCM 1997
as shown in the West and South arms for SUMO result in the morning measurement.
It means SUMO more representatives the observation compared to IHCM 1997. It is
occurred because SUMO is developed in Europe and also the location for this
research is in Sweden, Europe which has very different traffic condition from
Indonesia.
Author: Tina Andriyana
Journal Code: jptsipilgg130030