@article{yeom_schroeder_cunningham_salamati_rouphail_2017, title={Lane utilization model development for diverging diamond interchanges}, number={2618}, journal={Transportation Research Record}, author={Yeom, C. and Schroeder, B. J. and Cunningham, C. and Salamati, K. and Rouphail, N. M.}, year={2017}, pages={27–37} }
 @article{fernandes_salamati_rouphail_coelho_2017, title={The effect of a roundabout corridor's design on selecting the optimal crosswalk location: A multi-objective impact analysis}, volume={11}, ISSN={["1556-8334"]}, DOI={10.1080/15568318.2016.1237689}, abstractNote={ABSTRACT Crosswalks located at mid-block segment between roundabouts can provide a good balance among delay, carbon dioxide (CO2) emissions, and relative difference between vehicles and pedestrians speed. However, when considering local pollutant criteria, the optimal crosswalk location may be different to that obtained for CO2. This paper described a multi-objective analysis of pedestrian crosswalk locations, with the objectives of minimizing delay, emissions, and relative difference between vehicles and pedestrians speed. Accounting for the difference between global (e.g., CO2) and local pollutants (monoxide carbon, nitrogen oxides, and hydrocarbons) was one the main considerations of this work. Vehicle activity along with traffic and pedestrian flows data at six roundabout corridors in Portugal, one in Spain, and one in the United States were collected and extracted. A simulation environment using VISSIM, Vehicle Specific Power, and Surrogate Safety Assessment Model models was used to evaluate traffic operations along the sites. The Fast Non-Dominated Sorting Genetic Algorithm (NSGA-II) was implemented to further search optimal crosswalk locations. The results yielded improvements to both delay and emissions by using site-optimized crosswalks. The findings also revealed that the spacing between intersections widely influenced the optimal crosswalk location along a mid-block section. If the spacing is low (<100 m), the crosswalk location will be approximately in 20%–30% of the spacing length. For spacing values between 140 and 200 m, crosswalks would be located at the midway position. When a specific pollutant criterion was considered, no significant differences were observed among optimal crosswalk data sets.}, number={3}, journal={INTERNATIONAL JOURNAL OF SUSTAINABLE TRANSPORTATION}, author={Fernandes, P. and Salamati, K. and Rouphail, N. M. and Coelho, M. C.}, year={2017}, pages={206–220} }
 @article{fernandes_salamati_rouphail_coelho_2015, title={Identification of emission hotspots in roundabouts corridors}, volume={37}, ISSN={["1361-9209"]}, DOI={10.1016/j.trd.2015.04.026}, abstractNote={Abstract This study describes a methodology to quantify and characterize the vehicular emissions of functionally interdependent roundabouts at a corridor level. Corridor segments include those upstream of each roundabout, the circulating area, downstream of the roundabout as well as midblock sub-segments between adjacent roundabouts. The main purpose of the study is to identify the locations along the corridors where emissions tend to be consistently high. These locations are termed “Emission Hotspots”. The methodology is applied to four existing roundabout corridors in San Diego (California) and Avon (Colorado) in the United States, and in Mealhada and Chaves (Portugal). An extensive sample of second-by-second speed traces is available for these four corridors with roundabouts. The analysis shows that when roundabouts are fairly spaced and have similar geometric design features, no significant differences are observed between emissions of roundabouts located in the corridor. In such cases, the downstream sub-segments are the emission hotspots both in absolute terms (overall contribution on total emissions is higher than 34%) and per unit distance (22% higher than the average corridor value). When roundabouts are unequally spaced the highest emissions hotspots (more than 9% above the average corridor value) are found at the circulating area sub-segments. The results also demonstrate that the entry deflection angle has a slight impact on the spatial distribution of emissions especially in the case of closely spaced roundabouts.}, journal={TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT}, author={Fernandes, P. and Salamati, K. and Rouphail, N. M. and Coelho, M. C.}, year={2015}, month={Jun}, pages={48–64} }
 @article{mamidipalli_sisiopiku_schroeder_elefteriadou_salamati_rouphail_2015, title={Probit-based pedestrian gap acceptance model for midblock crossing locations}, number={2519}, journal={Transportation Research Record}, author={Mamidipalli, S. V. and Sisiopiku, V. P. and Schroeder, B. J. and Elefteriadou, L. and Salamati, K. and Rouphail, N. M.}, year={2015}, pages={128–136} }
 @article{salamati_rouphail_frey_liu_schroeder_2015, title={Simplified method for comparing emissions in roundabouts and at signalized intersections}, number={2517}, journal={Transportation Research Record}, author={Salamati, K. and Rouphail, N. M. and Frey, H. C. and Liu, B. and Schroeder, B. J.}, year={2015}, pages={48–60} }
 @article{schroeder_salamati_hummer_2014, title={Calibration and field validation of four double-crossover diamond interchanges in VISSIM microsimulation}, number={2404}, journal={Transportation Research Record}, author={Schroeder, B. J. and Salamati, K. and Hummer, J.}, year={2014}, pages={49–58} }
 @article{hummer_milazzo_schroeder_salamati_2014, title={Potential for metering to help roundabouts manage peak period demands in the United States}, number={2402}, journal={Transportation Research Record}, author={Hummer, J. E. and Milazzo, J. S. and Schroeder, B. and Salamati, K.}, year={2014}, pages={56–66} }
 @article{salamati_coelho_fernandes_rouphail_frey_bandeira_2013, title={Emissions estimation at multilane roundabouts effects of movement and approach lane}, number={2389}, journal={Transportation Research Record}, author={Salamati, K. and Coelho, M. C. and Fernandes, P. J. and Rouphail, N. M. and Frey, H. C. and Bandeira, J.}, year={2013}, pages={12–21} }
 @article{salamati_schroeder_geruschat_rouphail_2013, title={Event-based modeling of driver yielding behavior to pedestrians at two-lane roundabout approaches}, number={2389}, journal={Transportation Research Record}, author={Salamati, K. and Schroeder, B. J. and Geruschat, D. R. and Rouphail, N. M.}, year={2013}, pages={1–11} }
 @article{schroeder_rouphail_salamati_bugg_2012, title={Effect of pedestrian impedance on vehicular capacity at multilane roundabouts with consideration of crossing treatments}, number={2312}, journal={Transportation Research Record}, author={Schroeder, B. and Rouphail, N. M. and Salamati, K. and Bugg, Z.}, year={2012}, pages={14–24} }
 @article{salamati_schroeder_rouphail_cunningham_zhang_kaber_2012, title={Simulator study of driver responses to pedestrian treatments at multilane roundabouts}, number={2312}, journal={Transportation Research Record}, author={Salamati, K. and Schroeder, B. and Rouphail, N. M. and Cunningham, C. and Zhang, Y. and Kaber, D.}, year={2012}, pages={67–75} }
 @article{salamati_schroeder_rouphail_cunningham_long_barlow_2011, title={Development and implementation of conflict-based assessment of pedestrian safety to evaluate accessibility of complex intersections}, number={2264}, journal={Transportation Research Record}, author={Salamati, K. and Schroeder, B. and Rouphail, N. M. and Cunningham, C. and Long, R. and Barlow, J.}, year={2011}, pages={148–155} }