Comparing the efficiency of the super diverging diamond interchange to other innovative interchanges'

M Alzoubaidi, AM Molan, K Ksaibati - Simulation Modelling Practice and …, 2021 - Elsevier
Innovative interchange designs are gaining attention due to their potential in reducing
delays and mitigating congestion. This study was aimed at proposing the super diverging …

Modeling safety performance of the new super DDI design in terms of vehicular traffic and pedestrian

AM Molan, JE Hummer, K Ksaibati - Accident Analysis & Prevention, 2019 - Elsevier
Most existing interchanges in the United States were built more than 50 years ago based on
old design policies. Many of these designs are not consistent with current traffic and …

Operation of signalized diamond interchanges with frontage roads using dynamic reversible lane control

J Zhao, Y Liu, X Yang - Transportation research part C: emerging …, 2015 - Elsevier
Signalized diamond interchanges (SDI), connecting major highways and surface streets in
urban and suburban areas, are probably the most widely used interchange patterns. The …

Calibration and field validation of four double-crossover diamond interchanges in VISSIM microsimulation

BJ Schroeder, K Salamati… - Transportation Research …, 2014 - journals.sagepub.com
Calibration and validation results for modeling double-crossover diamond (DCD)
interchanges in a microsimulation environment are presented. The VISSIM simulation tool …

Introducing the super DDI as a promising alternative service interchange

AM Molan, JE Hummer… - Transportation research …, 2019 - journals.sagepub.com
The diverging diamond interchange (DDI) is in widespread use all around the United States
and is the most popular alternative design for failing conventional interchanges. While the …

[HTML][HTML] Diverging diamond interchange performance measures using connected vehicle data

ED Saldivar-Carranza, H Li, DM Bullock - Journal of Transportation …, 2021 - scirp.org
Since the first Diverging Diamond Interchange (DDI) implementation in 2009, most of the
performance studies developed for this type of interchange have been based on simulations …

Safety evaluation of diverging diamond interchanges in Missouri

BR Claros, P Edara, C Sun… - Transportation Research …, 2015 - journals.sagepub.com
The diverging diamond interchange (DDI) has gained in popularity since its first
implementation in the United States in 2009. The operational benefits and lower costs of …

Evaluating safety performance of the offset diamond interchange design using VISSIM and surrogate safety assessment model

A Mehrara Molan, JE Hummer, LJ Aspeitia… - … Safety & Security, 2022 - Taylor & Francis
Many existing interchanges, which were built mostly in 1950s and 1960s based on old
design guidelines, have operational and/or safety problems due to the inconsistency with …

Surrogate safety assessment of super DDI design: A case study in Denver, Colorado

MT Haq, AM Molan, K Ksaibati - Journal of Transportation Safety & …, 2023 - Taylor & Francis
This paper aims to advance the current research on the new super diverging diamond
interchange (Super DDI) design by evaluating the safety performance of its two versions …

Proposing the new parclo progressA design as a substitute for the conventional partial cloverleaf A interchanges

A Mehrara Molan, JE Hummer - International Journal of Modelling …, 2021 - Taylor & Francis
This paper proposes a new design called a partial cloverleaf progressA (parclo progressA)
which could be considered as a substitute for failing conventional parclo A interchanges …