Archaeological Investigations at Hotinakcohata, a Chimariko Village at Cedar Flat, Trinity County, California: Final Report. Alan P. Garfinke. Office of Environmental Planning, Division of Transportation Planning, California Department of Transportation, Sacramento, 1982. ix + 215 pp., illus., biblio., maps. $7.50 (paper).

1984 ◽  
Vol 49 (2) ◽  
pp. 443-444
Author(s):  
D. A. Fredrickson
Keyword(s):  
Transportation Planning ◽  
Environmental Planning ◽  
Final Report ◽  
Department Of Transportation ◽  
California Department ◽  
Planning Division

Aviation System Performance Measures for State Transportation Planning

2000 ◽  
Vol 1703 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Geoffrey D. Gosling
Keyword(s):  
Performance Measures ◽  
Transportation Planning ◽  
System Performance ◽  
National Level ◽  
Transportation System ◽  
System Support ◽  
Department Of Transportation ◽  
California Department ◽  
Update Process ◽  
Transportation Plan

A proposed set of aviation system performance measures that have been defined to support multimodal transportation planning in California is presented. As part of the 1998 update of the California Transportation Plan (CTP), the California Department of Transportation has defined a framework of system performance measures that could be applied on a multimodal basis to assess the performance of the transportation system, support informed decision making, and establish a coordinated and consistent process for performance measurement throughout the state. The research that is described examined approaches to measuring the performance of the aviation system that have been adopted at a national level and in other states, as well as general principles for measurement of transportation system performance that emerged from a conference held in 1997 as part of the CTP update process. The range of considerations that arise in measuring the performance of the aviation system is discussed, and potential performance measures that have been proposed to address the requirements of the CTP framework are identified. Finally, issues that will need to be addressed in implementing any comprehensive set of performance measures for the aviation component of the transportation system are discussed.

Results of California Department of Transportation Litter Management Pilot Study

2001 ◽  
Vol 1743 (1) ◽  
pp. 10-15 ◽  
Author(s):  
Gary Lippner ◽  
John Johnston ◽  
Suzanne Combs ◽  
Kimberly Walter ◽  
David Marx
Keyword(s):  
Pilot Study ◽  
Department Of Transportation ◽  
California Department

Findings from the California Vehicle Inventory and Use Survey

2019 ◽  
Vol 2673 (11) ◽  
pp. 349-360 ◽  
Author(s):  
Mobashwir Khan ◽  
Anurag Komanduri ◽  
Kalin Pacheco ◽  
Cemal Ayvalik ◽  
Kimon Proussaloglou ◽  
...  
Keyword(s):  
Data Collection ◽  
Commercial Vehicle ◽  
The United States ◽  
Department Of Transportation ◽  
California Department ◽  
Fine Grained ◽  
Vehicle Type ◽  
Vehicle Data ◽  
Almost All ◽  
Data Collection Effort

This paper describes the findings from the California Vehicle Inventory and Use Survey (CA-VIUS) which was administered between June 2016 and January 2018 and obtained data from a total of 11,118 fleets and 14,790 trucks. The surveys were segmented by registration, geography, vehicle type, and vehicle age, and the data collection effort exceeded sampling targets across almost all segments. The CA-VIUS is the largest statewide commercial vehicle data collection effort in the United States and will replace the 2002 National VIUS in transportation planning and emissions studies throughout California. Currently, the wealth of information provided by the survey is supporting the development of the California Statewide Freight Forecasting Model which is a fine-grained behavioral freight model. This model will allow California Department of Transportation and its partners to make more informed infrastructure and operational investment decisions. The CA-VIUS data will also be useful for researchers and practitioners hoping to understand the impacts and benefits of commercial vehicle movements on air quality, economic activity, safety, and vehicle usage. This paper documents key sampling and survey approaches, but mainly focuses on the key findings observed in the survey. This is a practical paper geared towards practitioners who are seeking to analyze a new VIUS survey and those who wish to implement one of their own.

Evaluation of a Low-Cost Program of Road System Traffic Safety Reviews for County Highways

2003 ◽  
Vol 1819 (1) ◽  
pp. 231-236 ◽  
Author(s):  
Stephen H. Ford ◽  
Eugene C. Calvert
Keyword(s):  
Traffic Safety ◽  
Low Cost ◽  
Department Of Transportation ◽  
Rural County ◽  
California Department ◽  
Total Cost ◽  
The Road ◽  
Mendocino County ◽  
Accident Data ◽  
Road System

Mendocino County is a large rural county in northern California with more than 1,000 centerline miles of county-maintained roads. The terrain is mountainous, with a few small inland valleys. During the 1990s, the Mendocino County Department of Transportation developed a program of road system traffic safety reviews to improve signing and markings on the arterials and collectors in the system. The effectiveness of the program was measured by comparing accident data for the reviewed roads with data for roads not included in, or influenced by, the reviews. To control for different groups of factors, two sets of control roads were selected—county-maintained roads not reviewed and state highways within the county. Over two consecutive 3-year review cycles, the number of accidents on the reviewed roads fell by 42.1%, while on the county-maintained roads not reviewed they increased by 26.5%, and on the state highways they fell by 3.3%. The total cost to conduct the reviews and implement the recommended changes was $ 79,300. The accident histories of the control roads were used to define the limits of the range of probable benefits. On the basis of average accident costs provided by the California Department of Transportation, calculated savings ranged from $ 12.58 million to $23.73 million, yielding a costs-to-benefits ratio between 1:159 and 1:299. The county is expanding the road system traffic safety review program to cover its entire maintained road system.

Design of a Mobile Platform for Overhead Detectors for Vehicles on the Highway

2004 ◽  
Author(s):  
Jacob S. Duane ◽  
Joe A. Palen ◽  
Fidelis O. Eke ◽  
Harry H. Cheng
Keyword(s):  
United States ◽  
The United States ◽  
Department Of Transportation ◽  
Ground Vehicles ◽  
Highway Traffic ◽  
Road Vehicles ◽  
California Department ◽  
New Family ◽  
Technical Study ◽  
Electronic Sensing

The California Department of Transportation, like many such departments in the United States, is working on developing a new family of electronic sensing devices for the purpose of monitoring certain characteristics of road vehicles as they move along the highway. The devices currently under development are to be located overhead individual highway traffic lanes, from where they can have a clear “view” of ground vehicles. In order to deploy these devices, there is a need to develop the capability to safely and efficiently mount them above highway traffic lanes, using existing overhead bridges and sign structures as support structures. This paper presents a technical study of a universal support platform for these devices. The study discusses such issues as mobility, reliability, and resistance to environmental and other hazards. Results of tests conducted on a prototype are also presented.

Plan of Action To Reduce Vehicle-Train Crashes in Alabama

1998 ◽  
Vol 1648 (1) ◽  
pp. 8-18
Author(s):  
Brian L. Bowman ◽  
Kristen Stinson ◽  
Cecil Colson
Keyword(s):  
Action Plan ◽  
The State ◽  
Final Report ◽  
Judicial Reform ◽  
Department Of Transportation ◽  
Legislative Action ◽  
Intersection Safety ◽  
Grade Crossing ◽  
Grade Crossings ◽  
Comprehensive Study

In April 1996, the state of Alabama Legislature, through the passage of Act 503, directed the Alabama Department of Transportation (ALDOT) to conduct a comprehensive study of rail-highway grade crossings in the state and recommend methods to drastically reduce the number of vehicle-train crashes. Senate Act 503 states: “… That the Alabama Department of Transportation is directed to conduct a comprehensive study of the rail/highway grade crossings in the state and present a plan to this body recommending methods to dramatically reduce vehicle/train accidents by the first day of the 1997 Regular Session.” In response to Act 503, the Multimodal Bureau of ALDOT developed an Action Plan that compared Alabama’s grade crossing crash experience with the experience of the national and southeastern states to identify the prevalent characteristics, identified the perceived needs of safety and railroad professionals required to decrease vehicle-train crashes and crash severity, and compiled a list of recommendations and activities required for implementation. The activities and results of the Act 503 study documented in the final report are summarized (1). It discusses the engineering, economic, educational, enforcement, and emotional impediments to increasing rail-highway intersection safety and presents a broad range of realistic countermeasures. These countermeasures include legislative action; judicial reform; and enforcement, economic, and education initiatives.

scholarly journals Performance assessment of damaged bridge bents after the Loma Prieta earthquake

1992 ◽  
Vol 25 (1) ◽  
pp. 44-51
Author(s):  
M. J. N. Priestley ◽  
F. Seible
Keyword(s):  
Department Of Transportation ◽  
California Department ◽  
Loma Prieta Earthquake ◽  
Assessment Design ◽  
Bridge Structures ◽  
Loma Prieta ◽  
Consistent Assessment ◽  
October 17 ◽  
Bridge Bents ◽  
Seismic Repair

Following the October 17, 1989 Loma Prieta Earthquake, a large number of damaged and undamaged structural concrete bridge structures had to be assessed and evaluated for seismic repair and retrofit. The lack of consistent assessment and evaluation models prompted the formulation of the outlined procedures in a first attempt to develop a comprehensive basis for the seismic assessment and retrofit of existing bridge structures. The presented principles are currently being developed at UCSD into consistent assessment design models in cooperation with the California Department of Transportation.

Control of a Mobile Support Platform for Vehicle Detectors on Highway

2004 ◽  
Author(s):  
Qingcang Yu ◽  
Fidelis O. Eke ◽  
Harry H. Cheng ◽  
Jacob S. Duane ◽  
Joe A. Palen
Keyword(s):  
Control System ◽  
Motion Control ◽  
Control Strategy ◽  
Mobile Platform ◽  
Department Of Transportation ◽  
Highway Traffic ◽  
Road Vehicles ◽  
California Department ◽  
New Family ◽  
Actual Location

The California Department of Transportation has sponsored the development of a new family of out of pavement, laser based sensing devices for monitoring road vehicles on the highway. These devices are to be placed over highway traffic lanes, so that they can have an unobstructed view of vehicles moving along the highway. It is expected that there will be need for relatively frequent adjustment of the actual location of these devices over the freeway, so that they can be moved from one lane to another, or so the position over a given lane can be modified. Because of these constraints, a mobile support platform is planned for these devices. This paper presents a motion control strategy for such a mobile platform, and the necessary hardware to implement the control system. The ideas presented in the paper have been tested on a prototype mobile support platform.

Sign in / Sign up

Export Citation Format

Share Document