Freeway Travel-Time Estimation and Forecasting [2012]

Details

• Creators:
  Guin, Angshuman ; Laval, Jorge ; Chilukuri, Bhargava Rama
• Corporate Creators:
  Georgia Tech Research Corporation
• Corporate Contributors:
  Georgia. Department of Transportation. Office of Research ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Traffic forecasting
  • Traffic estimation
  • Travel time
  • Microscopic traffic flow Travel-time forecasting
• Publication/ Report Number:
  FHWA-GA-12-1022
• Resource Type:
  Tech Report
• Geographical Coverage:
  Georgia;United States
• Corporate Publisher:
  Georgia. Department of Transportation. Office of Research
• Abstract:
  This project presents a microsimulation-based framework for generating short-term forecasts of travel time on freeway corridors. The microsimulation model that is developed (GTsim), replicates freeway capacity drop and relaxation phenomena critical for modeling non-steady state conditions. This framework is evaluated offline on a real-world freeway corridor by using data from manual counts and the Georgia Department of Transportation's video detection system. The travel time forecasts are compared with ground truth travel time data; the comparison demonstrated the efficacy of this framework to produce realistic forecasts. The study results showed that this framework can provide sufficiently accurate 5-minute and 10-minute forecasts and that it outperforms state-of-the-practice methods such as instantaneous travel time.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32659/dot_32659_DS1.pdf
• File Type:
  [PDF - 5.33 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:1d9df0d76186b019d2bd6f3f3ff33d052bed34d0bec92bf398d1a755100da81be2bef097046f9c23d45771ff0f5952efe99ec1e67dcec227dfe79f49110eace6