The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations.
Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.
During the early stages of the pilot study of Albemarle County it was necessary to examine and extract all the road orders for the counties from which Albemarle was formed, as well as the orders for Albemarle when it still contained the counties of Amherst, Buckingham, Fluvanna, Nelson, and a part of Appomattox. The broad applicability of the order
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Pawlett, N. M. (1975). Albemarle County road orders, 1783-1816 (Report No. VHTRC 76-R27). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18724
Pawlett, Nathaniel Mason. Albemarle County road orders, 1783-1816. Report no. VHTRC 76-R27. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18724.
Pawlett, Nathaniel Mason Albemarle County road orders, 1783-1816. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 76-R27, ROSA P. https://rosap.ntl.bts.gov/view/dot/18724.
Pawlett, N. M. (1975). Goochland County road orders, 1728-1744 (Report No. VHTRC 75-R71). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18713
Pawlett, Nathaniel Mason.. Goochland County road orders, 1728-1744. Report no. VHTRC 75-R71. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18713.
Pawlett, Nathaniel Mason. Goochland County road orders, 1728-1744. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 75-R71, ROSA P. https://rosap.ntl.bts.gov/view/dot/18713.
This is the first in a series of reports documenting the Virginia Department of Highways & Transportation line source model for predicting carbon monoxide concentrations within the microscale environments of highways. The purpose of this first report is to provide a detailed introduction to and verification of the theoretical development of AIRPOL-
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Carpenter, W. A., & Clemeña, G. G. (1975). The Theory and Mathematical Development of AIRPOL-4 (Report No. VHTRC 75-R49). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18715
Carpenter, William A., and Gerardo G. Clemeña. The Theory and Mathematical Development of AIRPOL-4. Report no. VHTRC 75-R49. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18715.
Carpenter, William A.,, and Gerardo G. Clemeña The Theory and Mathematical Development of AIRPOL-4. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 75-R49, ROSA P. https://rosap.ntl.bts.gov/view/dot/18715.
The study sought a detailed description of the public involvement techniques embraced in the public hearing strategy of each of the nation's state transportation agencies. In addition, it examined the status of the public hearing as a principal technique within the citizen participation process of each agency to determine how strong or weak a role
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Perfater, M. A. (1975). Citizen participation and the role of the public hearing (Report No. VHTRC 75-R36). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18710
Perfater, Michael A.. Citizen participation and the role of the public hearing. Report no. VHTRC 75-R36. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18710.
Perfater, Michael A. Citizen participation and the role of the public hearing. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 75-R36, ROSA P. https://rosap.ntl.bts.gov/view/dot/18710.
The rigid pavement design system computer program, RPS-3, designed as a result of this study is the third in a series of such systems developed under the project entitled "A System Analysis of Pavement Design and Research Implementation" (Ref 1), sponsored by the Texas Highway Department in cooperation with the Federal Highway Administration. The r
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Carmichael, R. F., & McCullough, B. F. (1975). Modification and Implementation of the Rigid Pavement Design System (Report No. 123-26). Texas Transportation Institute. Texas A&M University. https://rosap.ntl.bts.gov/view/dot/81103
Carmichael, Robert F. and B. Frank McCullough. Modification and Implementation of the Rigid Pavement Design System. Report no. 123-26. Texas Transportation Institute. Texas A&M University, 1975. https://rosap.ntl.bts.gov/view/dot/81103.
Carmichael, Robert F., and B. Frank McCullough Modification and Implementation of the Rigid Pavement Design System. Texas Transportation Institute. Texas A&M University, 1975, Report no. 123-26, ROSA P. https://rosap.ntl.bts.gov/view/dot/81103.
The Commonwealth of Virginia implemented the sign permissive or "eastern" rule permitting right turns on red traffic signals where designated by sign in 1972. In 1975, as a result of the growing national trend toward employing the general permissive or "western" rule (right turn on red permitted except where prohibited by sign) and in the interests
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Parker, M. R. (1975). Right turn on red : a report to the Governor and General Assembly of Virginia (Report No. VHTRC 76-R9). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18802
Parker, Martin R. Right turn on red : a report to the Governor and General Assembly of Virginia. Report no. VHTRC 76-R9. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18802.
Parker, Martin R Right turn on red : a report to the Governor and General Assembly of Virginia. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 76-R9, ROSA P. https://rosap.ntl.bts.gov/view/dot/18802.
This is the third in the series of AIRPOL reports. It details the mechanics and thought processes necessary for proper implementation of the computer program, AIRPOL-4. Furthermore, it recommends several guidelines for the preparation and generation of air quality analyses. The next report in this series will detail the computational method and alg
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Carpenter, W. A., Lunglhofer, W. R., & Clemeña, G. G. (1975). Introduction to AIRPOL-4: A User’s Guide (Report No. VHTRC 75-R56). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18718
Carpenter, William A.,, W. Richard, Lunglhofer, and Gerardo G. Clemeña. Introduction to AIRPOL-4: A User’s Guide. Report no. VHTRC 75-R56. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18718.
Carpenter, William A.,, et al. Introduction to AIRPOL-4: A User’s Guide. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 75-R56, ROSA P. https://rosap.ntl.bts.gov/view/dot/18718.
Because of widespread concern about the effect of textured pavement surfaces on interior car noise, sound pressure levels (SPL) were measured inside a test vehicle as it traversed 21 pavements with various textures. A linear regression analysis run on the dBA values and the predicted stopping distance numbers (PSDN) for the same pavements showed no
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Noble, D. F. (1975). Interior car noise created by textured pavement surfaces : final report (Report No. VHTRC 76-R17). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18856
Noble, David F. Interior car noise created by textured pavement surfaces : final report. Report no. VHTRC 76-R17. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18856.
Noble, David F Interior car noise created by textured pavement surfaces : final report. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 76-R17, ROSA P. https://rosap.ntl.bts.gov/view/dot/18856.
Pawlett, Nathaniel Mason.. Louisa County road orders. Report no. VHTRC 75-R43. Virginia Transportation Research Council, 1975. https://rosap.ntl.bts.gov/view/dot/18711.
Pawlett, Nathaniel Mason. Louisa County road orders. Virginia Transportation Research Council, 1975, Report no. VHTRC 75-R43, ROSA P. https://rosap.ntl.bts.gov/view/dot/18711.
New pavement marking materials and systems are continuously being introduced with claims of improvements in durability and reflectivity, as well as cost advantages. Because of the potential for savings through the use of a new system of pavement striping utilizing traffic paint and a sand/bead mixture, research was undertaken to compare the system
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Shepard, F. D. (1975). Evaluation of quick-drying pavement striping materials for stop lines and crosswalks (Report No. VHTRC 75-R58). Virginia Transportation Research Council. https://rosap.ntl.bts.gov/view/dot/18850
Shepard, Frank D. Evaluation of quick-drying pavement striping materials for stop lines and crosswalks. Report no. VHTRC 75-R58. Virginia Transportation Research Council, 1975. https://rosap.ntl.bts.gov/view/dot/18850.
Shepard, Frank D Evaluation of quick-drying pavement striping materials for stop lines and crosswalks. Virginia Transportation Research Council, 1975, Report no. VHTRC 75-R58, ROSA P. https://rosap.ntl.bts.gov/view/dot/18850.
Thirty-one sites representing the types of pavement surfaces on the highways of Virginia were tested by the Virginia Highway and Transportation Research Council skid trailer in an effort: (1) to determine the influence that tire tread depth, pavement texture, and water film thickness have on the deterioration of skid numbers with increased test spe
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Mahone, D. C. (1975). An evaluation of the effects of tread depth (Report No. VHTRC 75-R40). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18709
Mahone, David C.. An evaluation of the effects of tread depth. Report no. VHTRC 75-R40. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18709.
Mahone, David C. An evaluation of the effects of tread depth. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 75-R40, ROSA P. https://rosap.ntl.bts.gov/view/dot/18709.
The research reported here was undertaken to determine the feasibility of using raised pavement markers on interstate off-ramps in such a configuration that the driver will be alerted as a result of viewing an unexpected phenomenon. The results of this preliminary investigation show that the raised pavement marking system, consisting of a pattern o
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Shepard, F. D. (1975). Evaluation of raised pavement markers for reducing incidences of wrong-way driving (Report No. VHTRC 75-R67). Virginia Transportation Research Council. https://rosap.ntl.bts.gov/view/dot/18830
Shepard, Frank D. Evaluation of raised pavement markers for reducing incidences of wrong-way driving. Report no. VHTRC 75-R67. Virginia Transportation Research Council, 1975. https://rosap.ntl.bts.gov/view/dot/18830.
Shepard, Frank D Evaluation of raised pavement markers for reducing incidences of wrong-way driving. Virginia Transportation Research Council, 1975, Report no. VHTRC 75-R67, ROSA P. https://rosap.ntl.bts.gov/view/dot/18830.
Of the four acids tested in the laboratory, the nitric and hydrochloric types were selected for field experiments. These two acids performed about equally well, the choice as to which to use is dictated by price and availability. In the field experiments it was found that the application of acid raised the skid resistance by 15 skid numbers, which
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Creech, M. F. (1975). Methods of increasing the harshness of texture of old concrete pavements--acid etching (Report No. VHTRC 76-R23). Virginia Transportation Research Council. https://rosap.ntl.bts.gov/view/dot/18854
Creech, Marion F. Methods of increasing the harshness of texture of old concrete pavements--acid etching. Report no. VHTRC 76-R23. Virginia Transportation Research Council, 1975. https://rosap.ntl.bts.gov/view/dot/18854.
Creech, Marion F Methods of increasing the harshness of texture of old concrete pavements--acid etching. Virginia Transportation Research Council, 1975, Report no. VHTRC 76-R23, ROSA P. https://rosap.ntl.bts.gov/view/dot/18854.
Shepard, F. D. (1975). Traffic flow evaluation of pavement inset lights for use during fog : before phase (Report No. VHTRC 76-R6). Virginia Transportation Research Council. https://rosap.ntl.bts.gov/view/dot/18867
Shepard, Frank D. Traffic flow evaluation of pavement inset lights for use during fog : before phase. Report no. VHTRC 76-R6. Virginia Transportation Research Council, 1975. https://rosap.ntl.bts.gov/view/dot/18867.
Shepard, Frank D Traffic flow evaluation of pavement inset lights for use during fog : before phase. Virginia Transportation Research Council, 1975, Report no. VHTRC 76-R6, ROSA P. https://rosap.ntl.bts.gov/view/dot/18867.
This report summarizes (1) the findings of a research study on the applicability of using high intensity reflective sheeting on overhead signs, and (2) the implementation of recommendations evolving from these findings through elimination of the illumination on many overhead signs in Virginia. A survey was conducted to determine the percentage of o
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Robertson, R. N., & Shelor, J. D. (1975). The applicability of high intensity sheeting on overhead highway signs (Report No. VHTRC 76-R3). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18770
Robertson, R. N and J. D., Shelor. The applicability of high intensity sheeting on overhead highway signs. Report no. VHTRC 76-R3. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18770.
Robertson, R. N, and J. D., Shelor The applicability of high intensity sheeting on overhead highway signs. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 76-R3, ROSA P. https://rosap.ntl.bts.gov/view/dot/18770.
Information has been gathered regarding the performance of more than 400 lane-miles of jointed PCC interstate pavements located in five construction districts in Virginia. The factors causing pavement deterioration have been identified, the processes associated with deterioration have been described, and typical examples of distress, or failure typ
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Tyson, S. S., & McGhee, K. H. (1975). Deterioration of jointed Portland cement concrete pavements (Report No. VHTRC 76-R19). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18752
Tyson, Samuel S and Kenneth H McGhee. Deterioration of jointed Portland cement concrete pavements. Report no. VHTRC 76-R19. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18752.
Tyson, Samuel S, and Kenneth H McGhee Deterioration of jointed Portland cement concrete pavements. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 76-R19, ROSA P. https://rosap.ntl.bts.gov/view/dot/18752.
Studies of the maintenance and hydrology considerations involved in a sidewalk undermining problem in the Fairfax area are reported. Sidewalk undermining is attributed principally to a highly erodible soil found in much of the area and to the fact that current design standards and construction specifications are not adequate for sidewalk constructi
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McGhee, K. H. (1975). Sidewalk undermining studies : phase I, hydrology and maintenance studies (Report No. VHTRC 75-R48). Virginia Transportation Research Council (VTRC). https://rosap.ntl.bts.gov/view/dot/18835
McGhee, Kenneth H. Sidewalk undermining studies : phase I, hydrology and maintenance studies. Report no. VHTRC 75-R48. Virginia Transportation Research Council (VTRC), 1975. https://rosap.ntl.bts.gov/view/dot/18835.
McGhee, Kenneth H Sidewalk undermining studies : phase I, hydrology and maintenance studies. Virginia Transportation Research Council (VTRC), 1975, Report no. VHTRC 75-R48, ROSA P. https://rosap.ntl.bts.gov/view/dot/18835.
A program of construction and performance evaluation of seven Virginia flexible pavements containing at least some experimental features is reported. The objective of the program is to evaluate the performance of the pavements incorporating new or timely design concepts and to assess the flexibility of these concepts for further use. Among the majo
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McGhee, K. H. (1975). Evaluation of experimental flexible pavements : interim report no. 2 (Report No. VHTRC 76-R1). Virginia Transportation Research Council. https://rosap.ntl.bts.gov/view/dot/18721
McGhee, Kenneth H.. Evaluation of experimental flexible pavements : interim report no. 2. Report no. VHTRC 76-R1. Virginia Transportation Research Council, 1975. https://rosap.ntl.bts.gov/view/dot/18721.
McGhee, Kenneth H. Evaluation of experimental flexible pavements : interim report no. 2. Virginia Transportation Research Council, 1975, Report no. VHTRC 76-R1, ROSA P. https://rosap.ntl.bts.gov/view/dot/18721.
The purpose of this report is to disseminate information and ideas which, hopefully, will be of some value formulating an opinion concerning development of the coal, water and related land resources of southwestern North Dakota.
Griffin, G. C. (1975). Coal, Water and Related Land Resources Development in Southwestern North Dakota (Report No. UGPTI Staff Paper No. 1). Upper Great Plains Transportation Institute. https://rosap.ntl.bts.gov/view/dot/59777
Griffin, Gene C.. Coal, Water and Related Land Resources Development in Southwestern North Dakota. Report no. UGPTI Staff Paper No. 1. Upper Great Plains Transportation Institute, 1975. https://rosap.ntl.bts.gov/view/dot/59777.
Griffin, Gene C. Coal, Water and Related Land Resources Development in Southwestern North Dakota. Upper Great Plains Transportation Institute, 1975, Report no. UGPTI Staff Paper No. 1, ROSA P. https://rosap.ntl.bts.gov/view/dot/59777.
The techniques of collecting detailed traffic data for a given site are well known. A popular method uses chart recorders in combination with various vehicle sensing devices, such as tape switches, to provide an accurate pictoral display of the traffic flow, The human effort required to decipher these "pictures" is typically equal to or greater tha
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Korf, J. L., & Shepard, F. D. (1975). Computerized traffic data analysis system (Report No. VHTRC 76-R21). Virginia Transportation Research Council. https://rosap.ntl.bts.gov/view/dot/18832
Korf, Jerry L and Frank D Shepard. Computerized traffic data analysis system. Report no. VHTRC 76-R21. Virginia Transportation Research Council, 1975. https://rosap.ntl.bts.gov/view/dot/18832.
Korf, Jerry L, and Frank D Shepard Computerized traffic data analysis system. Virginia Transportation Research Council, 1975, Report no. VHTRC 76-R21, ROSA P. https://rosap.ntl.bts.gov/view/dot/18832.
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