DOT, FED HWY ADMN, Office of Acquisition Management, 400 7TH ST, SW, Room 4410, Washington, DC 20590

A -- DE VELOPMENT OF PROTOTYPE DRIVER MODELS FOR HIGHWAY DESIGN SOL DTFH61-96-R-00065 DUE 070396 POC Lise S. Lyles, Contract Specialist, (202) 366-4229. The study has been divided into two projects. The projects are to be conducted in parallel. The purpose of Project I will be to develop, test, and validate a functioning Driver Performance Model which will provide the Vehicle Dynamics Model of Interactive Highway Safety Design Model (IHSDM) with speed selection and control, and path selection and control input for single vehicle, 2-lane rural roads. The product of this study shall be in the form of a Driver Performance Model software package that is both compatible with the IHSDM Vehicle Dynamics Model, and the IHSDM in general. This product will be developed to a Driver Performance Model (DPM) system specification which will be written by the Contractor, based partially, or wholly on the material produced in FHWA contracts DTFH61-95-C-00043 and DTFH61-95-C-00082 which are entitled, ''Initial Development of a Prototype Driver Performance Model for Highway Design.'' This system specification shall be a largely expanded version of the DPM specifications produced in the initial contracts and shall define the requirements for the DPM (system) and address functional, performance, operational and logistical considerations. It shall define system and hardware requirements, specific variables to be used and their definitions, input/output specifications for the proposed model and each of its proposed components, and specifications for the perception, speed selection, path selection, speed control and path control algorithms to be used/developed for the proposed model. A large part of the Project I effort will be spent performing research to obtain enough data to develop a human performance database to develop/support the Driver Performance Model's algorithms. This research is outlined in the final reports of FHWA contracts DTFH61-95-C-00043 and DTFH61-95-C-00082. The research is directed to driver behavior and control that is influenced by highway geometry, such as horizontal and vertical alignment, cross-section design, intersections (including driveways), and traffic control devices such as signs, signals, pavement markings and roadside environment. This research may need to be altered to suit the final DPM system specification and should consider, at a minimum, driver population characteristics, driver type and vehicle type. The purpose of Project II will be to determine specific modifications, and the level of effort required to implement these modifications, that can be made to TWOPAS, the IHSDM Traffic Module's traffic model, to improve the module's representation of driver behavior in 2-lane, rural road traffic. The initial products of this study will be a description of how driver behavior is currently represented in TWOPAS and the specific modifications that need to be implemented to ensure that the model's representation of driver behavior supports the IHSDM activities of the highway designer. In addition, the research required to implement these specific modifications will also be specified. Maximum effort should be made to consider the logic and research proposed for Project I in developing the specific modifications to TWOPAS and in identifying the research required to implement the modifications. The Government will then make a decision as to whether or not to allow the Contractor to proceed with the modifications/research as part of this effort. If the Government decides to proceed, the product of this secondary effort will be the TWOPAS model with an improved representation of driver behavior. All responsible sources may submit a proposal which shall be considered by FHWA. To expedite request, please furnish two self-addressed gummed labels for each solicitation requested. The solicitation number should appear on the bottom edge of the labels. Availability of the solicitation is limited and copies will be furnished on a first-come, first-served basis until supply is exhausted. (0096)

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