All Outputs (13)

Development of a microsimulation model for motorway roadworks with narrow lanes (2019)
Journal Article
Nassrullah, Z., & Yousif, S. (2020). Development of a microsimulation model for motorway roadworks with narrow lanes. IEEE Transactions on Intelligent Transportation Systems, 21(4), 1536-1546. https://doi.org/10.1109/TITS.2019.2910159

This paper presents a newly developed microsimulation model for motorway roadwork sections to evaluate the efficiency of different temporary traffic management schemes (TTMSs) such as the use of narrow lanes, offside and inside lane closures. The eff... Read More about Development of a microsimulation model for motorway roadworks with narrow lanes.

Narrow lanes and their effect on drivers’ behaviour at motorway roadworks (2017)
Journal Article
Yousif, S., Nassrullah, Z., & Norgate, S. (2017). Narrow lanes and their effect on drivers’ behaviour at motorway roadworks. Transportation Research Part F: Traffic Psychology and Behaviour, 47, 86-100. https://doi.org/10.1016/j.trf.2017.04.016

In recent years, more use of narrow lanes as a temporary traffic management scheme (TTMS) on UK motorway roadwork sections has been made. The rationale is to free up carriageway space, especially for sites with high traffic demands needing repairs. W... Read More about Narrow lanes and their effect on drivers’ behaviour at motorway roadworks.

Traffic microsimulation (2015)
Journal Article
Yousif, S. (2015). Traffic microsimulation. Traffic technology international, Feb, 28-34

Dr Saad Yousif discusses traffic microsimulation with Lauren Ansell of Traffic Technology International magazine.

Modeling shuttle-lane roadworks operated by temporary traffic signals using micro-simulation (2014)
Journal Article
Alterawi, M., & Yousif, S. (2014). Modeling shuttle-lane roadworks operated by temporary traffic signals using micro-simulation. IEEE Transactions on Intelligent Transportation Systems, 15(5), 2159-2168. https://doi.org/10.1109/TITS.2014.2311162

This paper presents a newly developed micro-simulation model for shuttle-lane urban roadworks (which is closing one lane of a single carriageway road while leaving the other for use by both directions in an alternate one-way working) focusing on issu... Read More about Modeling shuttle-lane roadworks operated by temporary traffic signals using micro-simulation.

Red light running and close following behaviour at urban shuttle-lane roadworks (2014)
Journal Article
Yousif, S., Alterawi, M., & Henson, R. (2014). Red light running and close following behaviour at urban shuttle-lane roadworks. Accident analysis and prevention, 66, 147-157. https://doi.org/10.1016/j.aap.2014.01.021

Roadworks (work zones) are a common feature of our urban environment. They have a considerable impact on reducing roadway capacity, causing interruptions and imposing substantial delays to road users, which in turn adds to the cost to society and adv... Read More about Red light running and close following behaviour at urban shuttle-lane roadworks.

Critical review of research on high-cycle fatigue behaviour of brick masonry (2013)
Journal Article
Wang, J., Tomor, A., Melbourne, C., & Yousif, S. (2013). Critical review of research on high-cycle fatigue behaviour of brick masonry. Construction and Building Materials, 38, 602-609. https://doi.org/10.1016/j.conbuildmat.2012.09.010

Prediction of the level of service load above which accumulative damage occurs is a key priority for the masonry arch bridge owners. Limited investigations have been undertaken previously on the high-cycle fatigue behaviour of brick masonry in order... Read More about Critical review of research on high-cycle fatigue behaviour of brick masonry.

Effect of road narrowing on junction capacity using microsimulation (2012)
Journal Article
Yousif, S., Alterawi, M., & Henson, R. (2013). Effect of road narrowing on junction capacity using microsimulation. Journal of Transportation Engineering, 139(6), 574-584. https://doi.org/10.1061/%28ASCE%29TE.1943-5436.0000534

Traffic-calming measures have been widely used in urban areas, aiming sometimes to reduce vehicle flow rates but primarily to reduce speed and, hence, the number and severity of traffic accidents. The one-way priority working road narrowing (throttle... Read More about Effect of road narrowing on junction capacity using microsimulation.

Drivers’ lane utilization for UK motorways (2012)
Journal Article
Yousif, S., Al-Obaedi, J., & Henson, R. (2013). Drivers’ lane utilization for UK motorways. Journal of Transportation Engineering, 139(5), 441-447. https://doi.org/10.1061/%28ASCE%29TE.1943-5436.0000531

Lane utilization represents how the rate of traffic flow is distributed among the available number of lanes in a given section. This utilization or split is affected by several factors including traffic flow rates as well as the presence and amount o... Read More about Drivers’ lane utilization for UK motorways.

Microsimulation model for motorway merges with ramp-metering controls (2012)
Journal Article
with ramp-metering controls. IEEE Transactions on Intelligent Transportation Systems, 13(1), 296-306. https://doi.org/10.1109/TITS.2011.2169792

This paper presents a newly developed microsimulation model for motorway merge traffic, focusing on issues that relate to ramp-metering (RM) control and its effectiveness. The model deals with general and more specific drivers’ behavioral tasks, such... Read More about Microsimulation model for motorway merges with ramp-metering controls.

Motorway roadworks: effects on traffic operations (2002)
Journal Article
Yousif, S. (2002). Motorway roadworks: effects on traffic operations. Highways and transportation, 49(4), 20-22

This paper examines traffic operations at the approaches to motorway roadwork sites in the North West of England and focuses on some of the parameters affecting both safety and capacity. The trade–off between capacity and safety at motorway roadwork... Read More about Motorway roadworks: effects on traffic operations.

A study into on-street parking: effects on traffic congestion (1999)
Journal Article
Yousif, S., & Purnawan. (1999). A study into on-street parking: effects on traffic congestion. Traffic engineering & control, 40(9), 424-427

This paper describes the characteristics of vehicle manoeuvres when entering or leaving on-street parking. Those manoeuvres are often ignored by traffic engineers in the design process and the evaluation of traffic management schemes. However, they... Read More about A study into on-street parking: effects on traffic congestion.

Close following behavior: Testing visual angle car following models using various sets of data
Journal Article
Yousif, S., & Al-Obaedi, J. Close following behavior: Testing visual angle car following models using various sets of data. Transportation Research Part F: Traffic Psychology and Behaviour, 14(2), 96-110. https://doi.org/10.1016/j.trf.2010.11.001

Visual angle car following models have previously been proposed in modeling drivers’ “close following” behavior particularly in traffic simulation models. These models use relative speeds and relative spacings between successive vehicles, but they ar... Read More about Close following behavior: Testing visual angle car following models using various sets of data.

Traffic operations at on-street parking facilities
Journal Article
Yousif, S., & Purnawan. Traffic operations at on-street parking facilities. Proceedings of the ICE - Transport, 157(3), 189-194. https://doi.org/10.1680/tran.2004.157.3.189

This study reports on the findings based on observations from sites with parallel and angle parking layouts. The main parameters under consideration were the manoeuvre time for parking or unparking and the gap acceptance to merge into the traffic... Read More about Traffic operations at on-street parking facilities.