Billy M Williams

Investigating the relationship between freeway rear-end crash rates and macroscopically modeled reaction time

TRANSPORTMETRICA A-TRANSPORT SCIENCE, 18(3), 1001–1024.

Impacts of Private Autonomous and Connected Vehicles on Transportation Network Demand in the Triangle Region, North Carolina

JOURNAL OF URBAN PLANNING AND DEVELOPMENT, 147(1).

Crash Classification by Congestion Type for Highways

APPLIED SCIENCES-BASEL, 10(7).

Drone Delivery of an Automated External Defibrillator

New England Journal of Medicine, 383(12), 1186–1188.

Application of a Discontinuous Form of Macroscopic Gazis-Herman-Rothery Model to Steady-State Freeway Traffic Stream Observations

TRANSPORTATION RESEARCH RECORD, 2672(20), 51–62.

Data-driven approach for identifying spatiotemporally recurrent bottlenecks

IET INTELLIGENT TRANSPORT SYSTEMS, 12(8), 756–764.

Real-Time Prediction of Seasonal Heteroscedasticity in Vehicular Traffic Flow Series

IEEE Transactions on Intelligent Transportation Systems, 19(10), 3170–3180.

Reliability Assessment Tool: Development and Prototype Testing

TRANSPORTATION RESEARCH RECORD, 2672(14), 29–38.

Validation and Calibration of Freeway Reliability Methodology in the Highway Capacity Manual: Method and Case Studies

TRANSPORTATION RESEARCH RECORD, 2672(15), 93–104.

Weigh Station Impact on Truck Travel Time Reliability: Results and Findings from a Field Study and a Simulation Experiment

TRANSPORTATION RESEARCH RECORD, 2672(9), 120–129.

Advances in travel time reliability monitoring and assessment

JOURNAL OF INTELLIGENT TRANSPORTATION SYSTEMS, Vol. 21, pp. 435–438.

Exploring Vehicle–Pedestrian Crash Severity Factors on the Basis of In-Car Black Box Recording Data

In Transportation Research Record (Vol. 2659, pp. 148–154).

Performance in takeover and characteristics of non-driving related tasks during highly automated driving in younger and older drivers

Proceedings of the Human Factors and Ergonomics Society, 2017-October, 37–41.

Dynamic Bandwidth Analysis for Coordinated Arterial Streets

JOURNAL OF INTELLIGENT TRANSPORTATION SYSTEMS, 20(3), 294–310.

Dynamic traffic flow model for travel time estimation

Transportation Research Record, (2526), 70–78.

Dynamic traffic flow model for travel time estimation

In Transportation Research Record (Vol. 2526, pp. 70–78).

Real time traffic flow outlier detection using short-term traffic conditional variance prediction

TRANSPORTATION RESEARCH PART C-EMERGING TECHNOLOGIES, 50, 160–172.

Adaptive Kalman filter approach for stochastic short-term traffic flow rate prediction and uncertainty quantification

TRANSPORTATION RESEARCH PART C-EMERGING TECHNOLOGIES, 43, 50–64.

Erratum for “Modeling Seasonal Heteroscedasticity in Vehicular Traffic Condition Series Using a Seasonal Adjustment Approach” by Guogang Shi, Jianhua Guo, Wei Huang, and Billy M. Williams

Journal of Transportation Engineering, 140(9), 08014002.

Modeling Seasonal Heteroscedasticity in Vehicular Traffic Condition Series Using a Seasonal Adjustment Approach

Journal of Transportation Engineering, 140(5), 04014012.

Modeling seasonal heteroscedasticity in vehicular traffic condition series using a seasonal adjustment approach (vol 140, 04014012, 2014)

Journal of Transportation Engineering, Vol. 140.

Development of an oversaturated speed-flow model based on the highway capacity manual

Transportation Research Record, (2395), 41–48.

Development of an oversaturated speed-flow model based on the highway capacity manual

In Transportation Research Record (pp. 41–48).

Synthesizing Route Travel Time Distributions from Segment Travel Time Distributions

TRANSPORTATION RESEARCH RECORD, (2396), 71–81.

Comparative Evaluation of Reported Speeds from Corresponding Fixed-Point and Probe-Based Detection Systems

TRANSPORTATION RESEARCH RECORD, (2308), 110–119.

Delay analysis of single-lane roundabout with a slip lane under varying exit types, experimental balanced traffic volumes, and pedestrians, using microsimulation

Transportation Research Record, (2312), 76–85.

Delay analysis of single-lane roundabout with a slip lane under varying exit types, experimental balanced traffic volumes, and pedestrians, using microsimulation

In Transportation Research Record (pp. 76–85).

Development and evaluation of a constrained optimization model for traffic signal plan transition

Transportation Research Part C: Emerging Technologies, 20(1), 185–198.

Integrated Heteroscedasticity Test for Vehicular Traffic Condition Series

JOURNAL OF TRANSPORTATION ENGINEERING, 138(9), 1161–1170.

Temporal stability of freeway macroscopic traffic stream models

Transportation Research Record, (2315), 131–140.

Temporal stability of freeway macroscopic traffic stream models

In Transportation Research Record (pp. 131–140).

‘Real-time road traffic forecasting using regime-switching space-time models and adaptive lasso’ by Y. Kamarianakis, W. Shen, and L. Wynter

Applied Stochastic Models in Business and Industry, 28(4), 319–321.

Analysis of Single-Lane Roundabout Slip Lanes Using SIDRA

In I. L. Al-Qadi & S. Murrell (Eds.), T & DI Congress 2011 : integrated transportation and development for a better tomorrow : proceedings of the First Transportation and Development Institute Congress : March 13-16, 2011, Chicago, Illinois (pp. 1235–1244).

Analyzing Operational Improvements as an Alternative to Traditional Highway Construction

Transportation Research Record, (2223), 18–25.

Conflict Models for Single-Lane Roundabout Slip Lanes from Microsimulation Development and Validation

Transportation Research Record, (2236), 92–101.

Development and evaluation of a constrained optimization model for traffic signal plan transition

PAPERS SELECTED FOR THE 19TH INTERNATIONAL SYMPOSIUM ON TRANSPORTATION AND TRAFFIC THEORY, Vol. 17, pp. 490–508.

Fundamental Insight into Signal Plan Transition Methods

JOURNAL OF TRANSPORTATION ENGINEERING-ASCE, 137(10), 676–686.

Incorporating Stochastic Road Capacity into Day-to-Day Traffic Simulation and Traveler Learning Framework Model Development and Case Study

Transportation Research Record, (2254), 112–121.

Identification and Calibration of Site-Specific Stochastic Freeway Breakdown and Queue Discharge

Transportation Research Record, (2188), 148–155.

Real-Time Short-Term Traffic Speed Level Forecasting and Uncertainty Quantification Using Layered Kalman Filters

Transportation Research Record, (2175), 28–37.

Improved flow-based travel time estimation method from point detector data for freeways

Journal of Transportation Engineering, 135(1), 26–36.

Modeling the Role of Transportation Information in Mitigating Major Capacity Reductions in a Regional Network

Transportation Research Record, (2138), 75–84.

Traveler Information Delivery Mechanisms Impact on Consumer Behavior

Transportation Research Record, (2069), 77–84.

Adaptive seasonal time series models for forecasting short-term traffic flow

Transportation Research Record, (2024), 116–125.

Data collection time intervals for stochastic short-term traffic flow forecasting

Transportation Research Record, (2024), 18–26.

Simulation and analysis of freeway lane reversal for coastal hurricane evacuation

Journal of Urban Planning and Development, 133(1), 61–72.

Trraffic management center use of incident detection algorithms: Findings of a nationwide survey

IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, 8(2), 351–358.

Comprehensive Evaluation of Guardrail Delineation Systems

Public Works Management &Amp; Policy, 11(1), 49–62.

Reasonable Speed Limits on Suburban Multilane Highways with Curbs

Transportation Research Record, (1969), 10–17.

Reasonable speed limits on suburban multilane highways with curbs

In Highway safety: law enforcement; alcohol; driver training; safety planning and management; commercial vehicles; and motorcycles (pp. 10–17). Washington: Transportation Research Board Natl Research Council.

Reasonable speed limits on suburban multilane highways with curbs

In Highway Safety: Law Enforcement; Alcohol; Driver Training; Safety Planning and Management; Commercial Vehicles; and Motorcycles (pp. 10–17). http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000243925000002&KeyUID=WOS:000243925000002

The network kinematic waves model: A simplified approach to network traffic

JOURNAL OF INTELLIGENT TRANSPORTATION SYSTEMS, 10(1), 1–14.

Systematic Approach for Validating Traffic Simulation Models

Transportation Research Record, 1876(1876), 20–31.

Systematic approach for validating traffic simulation models

In Calibration and validation of simulation models 2004 (pp. 20–31). Washington, DC: Transportation Research Board.

Systematic approach for validating traffic simulation models

In Calibration and Validation of Simulation Models 2004 (pp. 20–31). http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000227334900003&KeyUID=WOS:000227334900003

Determining traffic stream impacts of radar detectors using microscopic simulation

Journal of Transportation Engineering, 129(1), 7–15.

Modeling and forecasting vehicular traffic flow as a seasonal ARIMA process: Theoretical basis and empirical results

Journal of Transportation Engineering, 129(6), 664–672.

Comparison of parametric and nonparametric models for traffic flow forecasting

Transportation Research Part C: Emerging Technologies, 10(4), 303–321.

Multivariate Vehicular Traffic Flow Prediction: Evaluation of ARIMAX Modeling

Transportation Research Record, 1776(1776), 194–200.

Multivariate vehicular traffic flow prediction - Evaluation of ARIMAX modeling

In Traffic Flow Theory and Highway Capacity 2001 (pp. 194–200). http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000176595900025&KeyUID=WOS:000176595900025

Freight planning requirements for interstate corridors

Transportation Quarterly, 52(2), 39–48. http://www.scopus.com/inward/record.url?eid=2-s2.0-0032021740&partnerID=MN8TOARS

Urban Freeway Traffic Flow Prediction: Application of Seasonal Autoregressive Integrated Moving Average and Exponential Smoothing Models

Transportation Research Record, 1644(1644), 132–141.

Urban freeway traffic flow prediction - Application of seasonal autoregressive integrated moving average and exponential smoothing models

In Traffic Flow Theory (pp. 132–141). http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000082030300014&KeyUID=WOS:000082030300014