Stephen Arhin, Ph.D., P.E., PMP, PTOE Civil Engineer & Highway Engineering Expert

Experienced in road user safety on public roadways as well as the design, construction, and analysis of signalized/unsignalized intersections, roadways, roundabouts, STOP-controlled intersections, sidewalks, bicycle lanes, crosswalks, Americans with Disability Act (ADA) compliance, Manual on Uniform Traffic Control Devices (MUTCD) compliance, temporary traffic control, work zones, utility relocation, clear zones, guide rails, lighting and traffic signal electrical wiring, traffic signal timing/programming access management plans, pedestrian and bicycle accommodation, and identification of high traffic crash locations.

Professional Experience

Provide technical investigations, analysis, reports, and testimony toward the resolution of commercial and personal injury litigation involving the design, construction and maintenance of highways, intersections, and traffic signals; temporary traffic control; highway work zones; municipal engineering; pedestrians/bicyclists struck by vehicles on private property and public rights of way.

• Oversaw the day-to-day operations of transportation engineering projects, highway design, interstate and interchange design, intersection and safety improvements, and Pedestrian/ADA/Bicycle facility design, crash data analysis, etc.
• Prepared technical reports for traffic engineering projects including traffic studies, traffic calming, signal timing, level of service analyses, and MOT Plans.
• Made field visits to support projects as needed.
• Responsible for tracking department budget and financial performance; managed sub-consultants as needed.
• Responsible for the growth of the company’s transportation and traffic engineering and safety business unit.
• Managed junior and mid-level engineers and provided guidance and technical assistance in traffic and transportation engineering as necessary.
• Drafted priced technical proposals per the Request for Proposal (RFP) or Proposed Change Orders (PCO) as they arose.
• Prepared design plans, specifications and estimates of roadway sections, alignment/right-of-way plans, site preparation plans, roadway profiles, and maintenance of traffic plans.
• Performed Project Management Activities including construction oversight tasks.

• Prepared roadway/highway design work: horizontal and vertical alignment, roadway sections, intersection layout, sight distance determination, interchange layout, right-of-way, and review of construction plans.
• Prepared technical reports for traffic engineering projects including traffic studies, traffic calming, signal timing, level of service analyses, MOT Plans.
• Oversaw the day-to-day operations of the company’s transportation engineering projects, including design-build and design-bid-build of highway, interstate, and interchange design, intersection and safety improvements, and Pedestrian/ADA/Bicycle facility design, crash data analysis, etc.
• Managed junior and mid-level engineers/staff and provided guidance and technical assistance as necessary.
• Provided detailed reviews of plan submissions to minimize conflicts, errors, and omissions.
• Conducted business development activities, including pursuit tracking and proposal development oversight; was responsible for tracking department budget and financial performance; managed sub-consultants as needed.
• Managed traffic/transportation field data collection team.
• Prepared cost estimates using MS Excel and the estimator software and utilizing the RS Means database and other client-required software.
• Use of relevant software: Microsoft Office Suite, Synchro, HCS, CORSIM, VISSIM, MicroStation; TEAPAC, etc.; Microsoft Project.

Professor Civil and Environmental Engineering Department 2023-2024
Chair, Civil and Environmental Engineering Department 2022-2024

• Management of the Civil & Environmental Engineering Department with a faculty of 8, preparing budgets for the Department, managing day-to-day operations of the Department with 120 undergraduate and 15 graduate students.
• Teaching in the Department; promoting and supporting the mission of the University as a Professor.
• Provided oversight of faculty members, including mentoring, performance evaluations, budget preparation for the Department.
• Conducted research as the Lead Principal Investigator for all research projects in the Transportation Research and Safety Data Center.
• Managed junior and mid-level engineers and provided guidance and technical assistance as necessary in the Transportation Research and Safety Data Center.
• Mentored undergraduate, graduate, and post-doc students/engineers and provided guidance and technical assistance.
• Provided expert engineering advice to state and federal officials who were responsible for decision-making for the advancement and improvement of transportation systems and safety.
• Evaluated complex technical issues and research results associated with the integration of new transportation and civil engineering technologies and identified future civil/transportation engineering research needs.
• Developed research requirements, long term goals, objectives, and schedules for the accomplishment of applied research and development, and deployment of technologies.
• Prepared and presented briefings on the outcome of several tests and evaluation of engineering systems, designs, reports, presentations at conferences to convey the status of research projects or programs as the Principal Investigator of over 150 research projects.
• Prepared traffic and transportation engineering research plans that involved the application of experimental theories or new and emerging technologies (e.g., AI, Neural Networks, Machine Learning).
• Successfully managed large and significant projects and programs for the District Department of Transportation, FHWA, NHTSA, USDOT, FMCSA and the DC Metropolitan Police Department executing significant projects impacting an important segment of the company or agency's mission.

Associate Professor 2018-2022
Taught in the Department; promoted and supported the mission of the University as an Associate Professor. Was responsible for the management of the research center operations and conducted transportation engineering research, served as the Principal Investigator (PI) on numerous projects, collaborate with sponsor in developing research program, developed research proposals, prepared research reports, oversaw internship program for the District of Columbia Department of Transportation (DDOT), collaborated with faculty and industry depending on needs, and hired and managed students for research and administrative support as Director of HUTRC.

Assistant Professor 2013-2018
Taught in the Civil Engineering Department, promoting and supporting the mission of the University as an Assistant Professor. Was responsible for the management of the research center operations and conducted transportation engineering research, served as PI on numerous projects, collaborated with sponsor in developing research program, develop research proposals, preparing research reports, oversaw internship program for DDOT, collaborated with faculty and industry depending on needs, and hired and managed students for research and administrative support as Director of HUTRC.

Director 2013-2024

Was responsible for the management of the Research Center operations and conduct of transportation engineering research, served as PI on numerous projects, collaborated with sponsoring agencies in the developing research programs, developed research proposals, prepared research reports, oversaw internship program for the District of Columbia Department of Transportation (DDOT), collaborated with faculty and industry depending on needs, and hired and managed students for research and administrative support as Director of HUTRC.

Associate Director 2001-2013
Was responsible for the management of the research center operations and conducted transportation engineering research, served as PI on numerous projects, collaborated with sponsor in developing research program, develop research proposals, preparing research reports, oversaw internship program for DDOT, collaborated with faculty and industry depending on needs, and hired and managed students for research and administrative support as the Associate Director of HUTRC.

• Provided expert engineering advice to state and federal officials who were responsible for decision-making for the advancement and improvement of transportation systems and safety.
• Evaluated complex technical issues and research results associated with the integration of new transportation and civil engineering technologies and identified future civil/transportation engineering research needs.
• Developed research requirements, long term goals, objectives, and schedules for the accomplishment of applied research and development, and deployment of technologies.
• Prepared and presented briefings on the outcome of several tests and evaluation of engineering systems, designs, reports, presentations at conferences to convey the status of research projects or programs as the Principal Investigator of over 150 research projects.
• Prepared traffic and transportation engineering research plans that involved the application of experimental theories or new and emerging technologies (e.g., AI, Neural Networks, Machine Learning)

Taught civil/transportation engineering courses in the Department; courses taught include:

• CVEN-490 - Highway Engineering
• CVEN-490 - Introduction to Transportation Engineering
• CVEN-475 - Project Management, Construction Scheduling and Estimating
• CVEN-475 - Construction Project Management
• CVEN-201 - Engineering Mechanics-Statics
• CMTC-490 - Engineering Ethics

This contract involved the support of the safety staff at DDOT. Tasks as Project Manager included:

• Provided day-to-day technical support in all safety and safety related projects assigned to the Safety and Standard Division. The types of services/activities required to perform comprehensive safety analysis and develop a highly effective and financially acceptable countermeasure include and not limited to the following:
• Ensured that the data supports the need for investigation/study
• Performed field observations and provide engineering drawings
• Prepared lane configuration and collision diagrams
• Performed traffic movement counts
• Conducted accident/crash analyses
• Prepared warrant analysis for intersections
• Developed and reviewed project plans, evaluated and made recommendations for safety improvements
• Conducted traffic study, safety, and traffic calming analysis
• Developed and reviewed MOT plans
• Conducted and reviewed Traffic Impact Studies
• Intersection Sight Distance Analysis
• Traffic calming analysis

Selected Projects

• Development of reportable near-miss bicycle crashes in DC (2023)
• Effectiveness of Modified Pedestrian Crossing Signs in an Urban Area (2023)
• Influence of Demographic Disparities on Seat Belt Compliance in an Urban Area (2023)
• Predicting Travel Times of Bus Transit in Washington, D.C. using Artificial Neural Networks (2023)
• Predicting Crash Injury Severity at Unsignalized Intersections using Support Vector Machines and Naïve Bayes Classifiers (2023)
• Acceptable Wait Time Models for Patrons at Transit Bus Stops (2022)
• Patron Survey of Acceptable Wait Times at Transit Bus Stops in the District of Columbia (2021)
• Predicting Injury Severity of Angle Crashes Involving Two Vehicles at Unsignalized Intersections Using Artificial Neural Networks (2021)
• Improving Mobility on Segments with Closely Spaced Intersections in Urban Areas (2021)
• Establishment of a Composite Safety Index for Pavement Management (2020)
• Transit Bus Travel Time Prediction using AVL Data (2020)
• Evaluation of Safety Surrogates of Traffic Enforcement at Signalized Intersections (2020)
• Crash Data Entry and Analyses for USVI-PD (2021)
• USVI Crash Data Assessment (2021)
• DC Vision Zero Initiative (2019)
• 2-660 E - Experimental Study for Non-Standard Pedestrian Crossing Sign in DC (2021)
• Carfax Crash Data Analysis (2017)
• Annual Seatbelt Compliance Survey in DC (2015 – 2023)
• MCSAP Grant Management for DC Metropolitan Police Department (2016 – 2024)
• Optimization of transit total bus stop time models (2015)
• Evaluation of Strength and Permeability of Previous Concrete in DC (2014)
• Predicting PCI From IRI in Washington DC (2014)
• Evaluation of Saw-Cut Sealants on North Capitol Street (2011 – 2015)
• Red-Light Violation Index at Signalized Intersection in the District of Columbia- (2011)
• Assessment of Loading Zones in the District of Columbia (2010)
• Evaluation of Hawk Signal at Georgia Avenue and Hamilton Street (2010)
• LED Energy Efficient Streetlight Study (2010)
• Evaluation of National's baseball LOGO on Federally Aided roadways (2010)
• Evaluation of Countdown Pedestrian Signals in DC (2009)
• Comparative Study of Countdown Pedestrian Displays in DC (2008)
• Design Guidelines for Traffic Calming Measures for Residential Streets in DC (2005)
• Development of Traffic Calming Policies and Guidelines in DC (2003)

Projects (partial list):

AE 3072 Visual Inspection of Roadway Pavement and Traffic Safety Features for AE 3072-0000 Task 36 – I-95 JFK Cecil County Inspections
Pavement and Traffic Safety Feature Inspections – Sub to Hardesty and Hanover (2025): Project Manager for the visual inspection of the roadway pavement and the traffic safety features for the I-95 from the Susquehanna River to the Delaware Line and included interchanges and ramps.

2025 FMT S-Facility I-395 Inspections- Pavement and Traffic Safety Feature Inspections; Located around I-395 in the City of Baltimore – Sub to Hardesty and Hanover (2025): Project Manager for the visual inspection of the roadway pavement and the traffic safety features for the I-395 in the City of Baltimore.

AE 3072 Visual Inspection of Roadway Pavement and Traffic Safety Features for William Preston Lane Bridge (Eastbound Approach) – Sub to Hardesty and Hanover (2022 – 2024): Project Manager for the visual inspection of the roadway pavement and the traffic safety features for the Eastbound Approach of the nearly 4.5-mile William Preston Lane Bridge.

Consultant for Traffic Signal System services - Sub to Kimley-Horn (2020 – 2022): Conducted reviews of various studies and design projects, including traffic impact studies, signal designs, bike/pedestrian studies, transit studies, streetscape and infrastructure enhancement projects, signal timing tasks, capacity analysis, environmental impact analysis, signal operational analysis and support, project deliverables review and general traffic engineering support services.

Evaluation of Rainbow Banding at 17th Street and P Street NW – (DDOT – Subconsultant to Sam Swchartz Engineering - 2021): Project Manager for the conduct of safety assessment in addition the evaluation of driver and pedestrian behavior at 4 intersections before and after the implementation of Rainbow Bands at the crosswalk of the study intersection.

I-95 Express Toll Lanes Northern Transition (I-95 ETL BN Extension to Bynum Road) – Sub to WSP (2019 – 2028): Responsible for the development of the MOT Plans for this project. My role was to develop and conduct reviews of the Maintenance of Traffic Plans developed for the Maryland State Highway Administration. The development and review of the plans were based on SHA’s standards as well as the MUTCD, AASHTO, etc.

Traffic Control Plan Implementation: 2017 Presidential Inauguration (DDOT):
Part of the team with DDOT that implemented the traffic control plan for the 2017 Presidential Inauguration (Prime: Sam Schwartz Engineering). Reviewed the impact of the traffic control plans on vehicular and pedestrian traffic within the limits of the project.

Rehabilitation of Oxon Run Trail (2016-2017; DDOT): As a sub-consultant to KCI and Associates; provided construction inspectors for the rehabilitation of Oxon Run Trail.

Kenilworth Avenue Northbound Pavement Rehabilitation (2016-2017; DDOT): Project Manager as a sub-consultant to Kumi Construction; provided inspectors for the pavement rehabilitation and oversaw the reviews of Traffic Control Plans for the work zones.

DC Citywide NHS Pavement Rehabilitation (2016-2017; DDOT): Project Manager as a sub-consultant to Sheladia & Associates; provided inspectors for the pavement rehabilitation and oversaw the reviews of Traffic Control Plans for the work zones.

Protected Bike Lanes Traffic Studies - DDOT (2017 to 2019): Subcontractor to RK&K for this task which involved traffic counts/data collection and analysis for selected corridors and intersections for the evaluation of protected bicycle lanes in the District of Columbia. Deployed field technicians to install data collection equipment, manage the data download and analyses, and conduct QA/QC reviews on the data and reports submitted to the client.

Citywide Traffic Data Collection and Analysis - DDOT (2015 - 2017): Subcontractor to Sam Schwartz Engineering for this task which involves traffic counts/data collection and analysis for the following:

• 24-hour Ramp Volume Counts
• Intersection turning movement counts, including bicycles and pedestrians
• Volume counts and speed data collection at several locations

Role was to deploy field technicians to install data collection equipment, manage the data download and analyses, and conducted QA/QC reviews on the data and reports submitted.

Traffic Control Plan Review for Papal Visit in 2015 (DDOT): Project Manager conducted a review of traffic control plans for the 2015 Papal Visit (Prime: Sam Schwartz Engineering).

Citywide Paving in DC (2014 – 2018): – Consultant to KCI Engineers: Project Manager managed roadway milling and paving construction inspections (independent) and review of traffic control plans.

Highway Safety Improvement Program (2012 through 2013): Project Manager conducted intersection safety improvements for 13 locations as a consultant to DDOT; role included managing the intersection data collection, crash analysis, review of site conditions, operational analyses and the development of recommendations to improve safety. Benefit-cost analyses were also conducted regarding the recommended safety improvements provided.

Citywide Speed Nexus Data Collection and Analysis - DDOT (2013): This project involved 24-hour speed data collection and analysis for 300 existing and proposed speed camera locations for the DC Metropolitan Police Department; was a subcontractor to Parsons Brinckerhoff. Role was to deploy field technicians to install data collection equipment, manage the data download and analyses, and conduct QA/QC reviews on the data and reports submitted to the client.

MDTA Contract #AE2411-000-002 (2011) - Data Collection for the Hatem Bridge Automated Electronic Toll (AET) Conversion – Consultant to Jacobs Engineering: Project Manager conducted traffic data collection and analysis for the AET Conversion analysis in Maryland.

Traffic Study for Worcester County (2011) – Consultant to the RBA Group: Conducted traffic analysis for 25 intersections and 12 corridors using Synchro for Worcester County. The project involved the examination of various operational and safety improvement options at the intersections and on the corridors.

2030 Traffic Study for Charles County (2011) – Consultant to the RBA Group: Developed a Synchro Model for the County to analyze 38 intersections and 20 corridors of significant interest to the County. The traffic study involved data collection (volume and turning movement counts), the examination of various improvement options and determining the impacts of proposed future developments and conceptual designs for the horizon year.

Traffic Project Engineer with RBA Group, MD (2007): Conducted Worcester County-wide traffic study for various intersection and roadway improvements and developments. Prepared a report for the county on the findings of the study as well as provided recommendations for roadway improvements and safety.

Conducted traffic studies for the Town of La Plata; involved developing Synchro model for the Town and the analyses of 23 intersections and 21 arterial segments. Prepared a report for the Town on the results of the analyses as well as recommendations for intersection roadway improvements.

Traffic Project Engineer - Daniel Consultants, Inc., MD, (2007):
Evaluation of Bus Preemption System along Georgia Avenue in Washington, DC
Conducted Traffic Signal Warrant Studies for 12 intersections in the District of Columbia.

Managed various traffic data collection efforts.

Contract Traffic Project Engineer - The LPA Group Inc., Columbia, SC (2005). Projects undertaken include:

• Traffic Impact Studies on Rea Road widening project (Charlotte, NC)
• Greene Casino Development Traffic Impact Study (Columbia, SC)
• Lexington Medical Center Parking Study (Columbia, SC)
• Harbison Blvd and St. Andrews Road signal design (Columbia, SC)

Responsible for Traffic/Transportation Engineering design, analyses, etc. Representative projects undertaken include:

• McKnight Road Signalization Improvement Project (Ross Township, Pittsburgh, PA): Performed capacity analyses and developed signal timing plans for an 11-intersection coordinated system using TRANSYT-7F, SIGNAL 97, and NOSTOP.
• US 49 Improvement Project (Rankin County, Mississippi): Performed Signal Warrant analyses for 8 unsignalized intersections; developed and designed new signal timing plans for existing intersections under future conditions and for those that met the warrants.
• Kittaning by-Pass Signing Project (Pennsylvania): Computed sign structural quantities for designed traffic sign structures.
• Mon River Bridge Project (Pittsburgh, PA): Performed traffic counts and simulation analyses using CORSIM for various proposed future traffic plans/alternatives.
• Beaver County Courthouse Parking Garage Study (Beaver, PA): Conducted traffic impact study for a Highway Occupancy Permit (HOP) for a proposed 300-lot parking garage for the Beaver County Courthouse. Traffic study involved traffic counts, trip generation and distribution, capacity analyses, maintenance and protection of traffic during construction of garage, signing and preparation of a report for PennDOT.
• Woodlawn Road Extension Traffic Study (Beaver, PA): Conducted traffic impact study and prepared final report for the development of the US Gypsum Plant in Aliquippa and the new Beaver Jailhouse with the extension of Woodlawn Road. The study involved conducting traffic counts, trip generation and distribution, capacity analyses, maintenance and protection of traffic during construction of roadway, signing and the preparation of a report for PennDOT.

Professional Credentials

• Professional Engineer License: District of Columbia, Maryland, Virginia
• Professional Traffic Operations Engineer (PTOE)
• Project Management Professional (PMP)
• Certified Research Administrator (CRA)
• Accreditation Board for Engineering and Technology (ABET) Program Evaluator

Education

Ph.D., Civil and Environmental Engineering, George Washington University, Washington DC

M.S., Civil Engineering, Howard University, Washington, DC

B.S., Civil Engineering, University of Sciences and Technology, Ghana

Continuing Education

• Leadership Principles certification, Harvard School of Business, 2021
• ASCE Continuous Education Certifications, 2019
  • Pedestrian and Bicycle Safety An Interactive Approach to Focusing on Best Practices (AWI082516)
  • Pavement Marking Retroreflectivity (AWI032613)
  • Improving Highway Safety: An Overview of 9 Proven Crash Countermeasures (AWI061611)
  • Overview Use of Highway Safety Data Systems (AWI1120210)
  • Connected Automated Vehicles Past, Present and Future (AWI062518)
  • Traffic Volume Data Collection: A Practical Guide (AWI030315)
• Blackboard Certification, 2014
• ASCE Continuous Education Certifications, 2014
  • Complying with the MUTCD: Traffic Signing for Horizontal Curves (AWI101811)
  • A Closer Look at Road Diets (AWI091412)
  • Engineering Treatments and Design Development Strategies for Creating Safe Routes to Schools (AWI61813)
  • High Capacity Transit Alternatives (AWI022511)
  • Analysis and Assessment of Roundabouts (AWI062311)
• Applying the Quality Matters Rubric Certification, Quality Matters Program; (for online course instruction), 2014

Speaking Engagements

Harnessing data and lived experiences for safe streets; Smart Growth America, Improving lives by improving Communities, February 23, 2024, https://smartgrowthamerica.org/harnessing-data-and-lived-experiences-for-safe-streets/.

Predicting STOP-Sign Compliance at All-Way STOP Control Intersections in Close Proximity to Signalized Intersections, (2019 Annual TRB Meeting, Washington, DC).

Structural Equation Modeling: An Application to Pedestrian Safety in Washington, D.C., and Exploration of the Impact of Variable Scaling Procedures, (2017 Annual TRB Meeting, Washington, DC).

Development of a Red-Light Running Violation Index for Signalized Intersection, National Conference on Intermodal Transportation: Problems, Practices and Policies, Hampton University, VA, October 11-12, 2012.

Driver Behavior Models for a Driving Simulator-Based Intelligent Speed Adaptation System, Urban Transport Conference, Bologna, Italy.

Establishing International Roughness Indices for a Dense Urban Area, Presented at the 2009 TRB Annual Meeting, Session 678, Washington, DC.

Effectiveness and Acceptance of Adaptive Intelligent Speed Adaptation Systems, Presented at the 2008 TRB Annual Meeting, Session 565, Washington, DC.

Publications

S. Arhin; and Manandhar, B.; (2022) “Influence of Demographic Disparities on Seat Belt Compliance in an Urban Area”. Journal of the Transportation Research Board; Volume 2677, Issue 1; https://doi.org/10.1177/03611981221099514

S. Arhin; Gatiba, A.; Anderson, T.; Ribbiso M.; and Manandhar, B.; (2021) “Effectiveness of Modified Pedestrian Crossing Signs in an Urban Area”. Journal of Traffic and Transportation Engineering (English Edition), 2021, ISSN 2095-7564, https://doi.org/10.1016/j.jtte.2021.04.001

S. Arhin, Babin Manandhar, Hamdiat Baba-Adam (2020) “Predicting Travel Times of Bus Transit in Washington, D.C. Using Artificial Neural Networks”. Civil Engineering Journal, Vol 6, No 11 (2020). https://doi: 10.28991/cej-2020-03091615

S. Arhin; Gatiba, A.; (2020) “Predicting Crash Injury Severity at Unsignalized Intersections Using Support Vector Machines and Naïve Bayes Classifiers”. Transportation Safety and Environment, Volume 2, Issue 2, June 2020, Pages 120–132, https://doi.org/10.1093/tse/tdaa012

S. Arhin; Gatiba, A.; Anderson, T.; Ribbiso M.; and Manandhar, B.; (2019) “Predicting Acceptable Wait Time Models for Patrons at Transit Bus Stops by Time of Day”. Engineering, Technology & Applied Science Research. Vol. 9 No. 4 (2019): August 2019.

S. Arhin; Gatiba, A.; Anderson, T.; Ribbiso M.; and Manandhar, B.; (2019) “Patron Survey of Acceptable Wait Times at Transit Bus Stops in the District of Columbia”. Open Journal of Civil Engineering, 9, 268-280.

S. Arhin; and Gatiba, A. (2019) “Predicting Injury Severity of Angle Crashes Involving Two Vehicles at Unsignalized Intersections Using Artificial Neural Networks”. Engineering, Technology & Applied Science Research Vol. 9, No. 2, 2019, pp 3871-3880.

S. Arhin; Gatiba, A.; Anderson, T.; Ribbiso M.; and Manandhar, B.; (2019) “Improving Mobility on Segments with Closely Spaced Intersections in Urban Areas”. Open Journal of Civil Engineering, 2019, 9, pp 46-56.

S. Arhin, Asteway Ribbiso (2017) Establishment of a Composite Safety Index for Pavement Management. Journal of Civil & Environmental Engineering 17-340R1.

Chanseok Jeong; Augusto César Santos Peixoto; Andre Aquino; Stephen Lloyd; S Arhin (2017) Genetic Algorithm-based acoustic-source inversion approach to detect multiple moving wave sources of an arbitrary number; Journal of Computing in Civil Engineering; http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29CP.1943-5487.0000664

S. Arhin, R. Stinson (2016) Transit Bus Travel Time Prediction using AVL Data; International Journal of Engineering Research & Technology/ ESRSA Publications, Volume. 5 - Issue. 12, December 2016, e-ISSN: 2278-0181; http://dx.doi.org/10.17577/IJERTV5IS120019

S. Arhin, P. Jones, M. Anderson (2016) Evaluation of Safety Surrogates of Traffic Enforcement at Signalized Intersections. Journal of Safety Engineering 2016, 5(1): 1-7 DOI: 10.5923/j.safety.20160501.01. http://article.sapub.org/10.5923.j.safety.20160501.01.html

S. Arhin, E. Noel, M. Anderson, L. Williams, A. Ribisso*, R. Stinson*, (2016) Optimization of transit total bus stop time models: Journal of Traffic and Transportation Engineering (English Edition), Vol. 3 (2), p. 146-153, ISSN 2095-7564, http://www.sciencedirect.com/science/article/pii/S2095756415305766

S. Arhin, A. Eskandarian (2015) Predicting Driver Braking and Stopping Behavior using an Intelligent Speed Adaptation System. International Journal of Engineering Research & Technology/ ESRSA Publications, Vol. 4-06, e-ISSN: 2278-0181. http://www.ijert.org/view-pdf/13493/predicting-driver-braking-and-stopping-behavior-using-an-intelligent-speedadaptation-system

S. Arhin, E. C. Noel, A. Ribbiso (2015) Acceptable International Roughness Index Thresholds based on Present Serviceability Rating. Journal of Civil Engineering Research, Vol 5(1): p 10-17. e-ISSN: 2163-2340. http://article.sapub.org/10.5923.j.jce.20150501.02.html

S. Arhin, M. Anderson, A. Ribbiso (2015) Predicting Pavement Condition Index Using International Roughness Index in a Dense Urban Area. Journal of Civil Engineering Research/ Scientific & Academic Publishing, Vol 5(1): p 10-17, e-ISSN: 2163-2340. http://article.sapub.org/10.5923.j.jce.20150501.02.html

S. Arhin, E.C. Noel, L. Williams, M. Anderson, A. Ribbiso (2015) Predicting Dwell Time by Bus Stop Type and Time of the Day. Journal of Civil and Environmental Engineering/OMICS 5:189. doi:10.4172/2165-784X.1000189. http://www.omicsgroup.org/journals/predicting-dwell-time-by-bus-stop-type-and-time-of-the-day-2165-784X-1000189.php?aid=62441

S. Arhin, E. C. Noel, O. Dairo (2014) Bus Stop On-Time Arrival Performance and Criteria in a Dense Urban Area. International Journal of Traffic and Transportation Engineering/ Scientific & Academic Publishing, Vol 3(6): p 233-238, e-ISSN: 2325-0070. http://article.sapub.org/10.5923.j.ijtte.20140306.01.html

S. Arhin, R. Madhi, W. Khan (2014) Optimal Mix Designs for Pervious Concrete for an Urban Area. International Journal of Engineering Research & Technology/ ESRSA, Vol 3(12), e-ISSN: 2278-0181. http://www.ijert.org/view-pdf/11923/optimal-mix-designs-for-pervious-concrete-for-an-urban-area

S. Arhin, A. Eskandarian, J. Blum, P. Delaigue. (2008) Development and Evaluation of an Advanced Intelligent Speed Adaptation (ISA) System. Journal of Automobile Engineering/Proceedings of the Institution of Mechanical Engineers, Part D, Vol. 222, No. D9, pp. 1603-1614. http://pid.sagepub.com/content/222/9/1603.full.pdf

S. Arhin, A. Eskandarian, J. Blum. (2007) Effectiveness and Acceptance of Adaptive Intelligent Speed Adaptation Systems: Transportation Research Board No. 2086, pp. 133-139. http://onlinepubs.trb.org/onlinepubs/conferences/2011/RSS/2/Arhin,S.pdf

S. Arhin, E.C. Noel. (2007) Evaluation of Countdown Pedestrian Signals in the District of Columbia: IEEE-ITSC Journal, pp 337-342. http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=6083038&abstractAccess=no&userType=inst

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