Digital Commons Network^™

Systems Analysis--A Tool For The Traffic Engineer, J. C. Oppenlander

Purdue Road School

No abstract provided.

Traffic Engineering Before The Operation Of New Facilities, J. Al. Head

Purdue Road School

No abstract provided.

Aerial Photography Applied To Traffic Studies, W. F. Howes, R. D. Miles

Purdue Road School

No abstract provided.

Construction Projects 1963, J. R. Cooper

Purdue Road School

No abstract provided.

Back Cover, Purdue Road School

Purdue Road School

No abstract provided.

Planning And Financing County Bridge Programs, Jean E. Hittle, D. G. Shurig

Indiana Local Technical Assistance Program (LTAP) Publications

This manual has been developed to review several different areas of information related to county bridge improvement programs, including (1) the authority and jurisdiction over county bridges (Section II), (2) the various sources of funds for construction and repair of county bridges (Section III) , and (3) the fiscal process of making appropriations and expenditures for construction and repair of bridges (Section VI). These topics are presented in terms of the current Indiana statutes, and for this reason should be of considerable assistance to county road officials as a guide to the official duties of their office.

Estimation Of Time-Varying Correlation Functions, G. R. Cooper, Helmut Berndt

Department of Electrical and Computer Engineering Technical Reports

The need for estimating the auto- or crosscorrelation functions of nonstationary random processes frequently arises in communication and self-adaptive systems. In most situations only one sample function can he observed over finite time. It is the purpose of this work to establish a firm theoretical basis for such a measurement of time-varying correlation functions, and the emphasis here is on suitable estimation procedures rather than specific measurement techniques. Second order stochastic processes are used as a mathematical model. The minimum mean square error between a weighted time average and the true (ensemble average) correlation function is investigated. This procedure leads …

Advanced Communication Theory Techniques Technical Documentary Report No. Asd-Tdr-63-186, J. C. Hancock, D. G. Lainiotis, J. G. Lindenlaub, Marquart R. G., H Schwarzlander

Department of Electrical and Computer Engineering Technical Reports

Under this contract a number of topics have been studied and analyzed in detail in order to bring together and somewhat extend the concepts of communication theory as they apply to some current problems in digital communication systems. Radio wave channels are characterized by a model' which accounts for both multiplicative and additive disturbances, A large amount of experimental data pertaining to radio disturbances is evaluated and correlated. She. importance of the Rayleigh fading channel is emphasized and previous work is extended to determine the capacity and efficiency of the Rayleigh, channel. Detection theory concepts have been extended to treat …

The Simulation Of Traffic Flow To Obtain Volume Warrants For Intersection Control: Technical Paper, Russell Maclean Lewis, Harold L. Michael

JTRP Technical Reports

No abstract provided.

Some Traffic Flow Relationships On Two-Lane Urban Streets : Final Paper, Ronald C. Sonntag

JTRP Technical Reports

No abstract provided.

Aggregate Degradation In Bituminous Mixtures: Technical Paper, Fred Moavenzadeh, William Harner Goetz

JTRP Technical Reports

No abstract provided.

Hydrology Of Small Watersheds In Indiana And Hydrodynamics Of Overland Flow, I-Pai Wu

JTRP Technical Reports

No abstract provided.

Photogrammetric Analysis Of Traffic Flow Characteristics On Multilane Highways, William F. Howes

JTRP Technical Reports

No abstract provided.

The Effect Of Various Factors On Vehicle Speeds: A Review Of The Literature, Lester R. Jester

JTRP Technical Reports

No abstract provided.

An Evaluation Of Intersection Illumination, John Martin Wright

JTRP Technical Reports

No abstract provided.

Stability Relationships Of Gyratory-Compacted Bituminous Mixtures, Herbert William Busching

JTRP Technical Reports

No abstract provided.

Factors Affecting The Determination Of Density And Moisture By Nuclear Radiation Techniques : Progress Report, Matthew W. Witczak

JTRP Technical Reports

No abstract provided.

Aerial Photography Applied To Traffic Studies : Technical Paper, William F. Howes, Robert Douglas Miles

JTRP Technical Reports

No abstract provided.

Transformation Of Clay Minerals By Calcium Hydroxide Attack : Technical Paper, Sidney Diamond, Joe L. White, William Lee Dolch

JTRP Technical Reports

No abstract provided.

Tobermorite And Tobermorite-Like Calcium Silicate Hydrates: Their Properties And Relationships To Clay Minerals, Sidney Diamond

JTRP Technical Reports

No abstract provided.

Studies Of Deflection Due To Creep In Prestressed Concrete, Hans Richard Kask

JTRP Technical Reports

No abstract provided.

An Evaluation Of Intersection Illumination : Technical Paper, John Martin Wright, Joseph C. Oppenlander

JTRP Technical Reports

No abstract provided.

Hydraulics Of River Flow Under Arch Bridges; Hydraulics Of Submerged Arch Bridges : Progress Report No. 6, Oddvar Eikeri

JTRP Technical Reports

No abstract provided.

An Analysis Of Traffic Accidents On County Roads, D. F. Petty, H. L. Michael

Indiana Local Technical Assistance Program (LTAP) Publications

The purpose of this research was to investigate the causes of and determine possible remedies for the rising number of county road accidents in Indiana. County road accidents were defined for the purpose of this study as all traffic accidents occurring on roads which are administered by the County Commissioners in Indiana except accidents occurring at intersections of county roads with state highways. These latter accidents are normally charged to state highways. The information used in this research was obtained from accident records. The best available source of this type of information, the accident reports which are filed at the …

Describing Function Inversion: Theory And Computational Techniques, John E. Gibson, E. G. Di Tada, J. C. Hill, Ibrahim E. S.

Department of Electrical and Computer Engineering Technical Reports

In the last few years the study of nonlinear mechanics has received the attention of numerous investigators, either under the scope of pure mathematics or from the engineering point of view. Many of the recent developments are based on the early works of H. Poincare [1] and A. Liapunov [2] As examples can be cited the perturbation method, harmonic balance, the second method of Liapunov, etc. An approximate technique developed almost simultaneously by C. Goldfarb [3] in the USSR, A. Tustin [4] in England, R. Kochenburger [5] in the USA, W, Oppelt [6] in Germany and J. Dutilh [7] and …

Analysis And Design Of Digital Control Systems, K. S. Fu, Raymond M. Kline

Department of Electrical and Computer Engineering Technical Reports

All digital control systems contain at least one signal which is sampled in time and quantized in amplitude. Design of these systems is often based on the assumption that a very large number of levels of quantization is available leading to the approximation of the basically nonlinear system by a linear one. If the actual system is constructed so that the linear assumption is satisfied, the performance may be excellent but other design factors such as reliability, cost, weight, and power consumption may be very unsatisfactory. On the other hand, if the actual system is constructed so that only a …

County Subdivision Control: Model Ordinance With Discussion, William Joseph Head

Indiana Local Technical Assistance Program (LTAP) Publications

The purpose of this manual is to impress upon the reader the urgent need for sound planning and to show what tools are available to facilitate the job of planning and (2) to provide a rough framework, a "model subdivision ordinance," around which a county can build a subdivision ordinance tailored to its particular needs and circumstances.

It must be emphasized that the values appearing in this manual are only typical minimal values. The model ordinance is quite general—any county wishing to adopt this ordinance would be obliged to initiate a study to determine to what extent the model ordinance …

Electromagnetic Propagation Velocities In An Inhomogeneous Or Random Atmosphere, G. R. Cooper, Robert Eugene Harrison

Department of Electrical and Computer Engineering Technical Reports

This thesis is concerned primarily with determination of statistics for the velocities of propagation of an electromagnetic wave in a dispersive medium. The velocities of propagation are discussed in terms of a plane travelling wave solution of Maxwell's equations obtained using the multiple Laplace transformation and complex inversion integrals. The types of dispersion discussed correspond to a magneto-ionic, electron displacement and polar resonances of the ionosphere and troposphere. The physical nature of the randomness of the dispersive index of refraction is derived from considerations of statistical turbulence theory. Expressions are then obtained for determining the mean, mean square and variance …

Correlation Receivers Minimizing Intersymbol Interference, J. C. Hancock, J. M. Aein

Department of Electrical and Computer Engineering Technical Reports

The problem considered here is that of binary pulse communication operating in a white noise environment -wherein interfering signal pulses are generated by any of the following causes t (1) A signaling rate larger than channel bandwidths, causing pulse spill over into succeeding bands. (2) Go-channel interference or cross talk on carrier systems. (3) Signal echoes or reflections due to antenna location or mismatch of high frequency components. The optimum correlation receiver is found to be a linear combination of the desired signal pulse plus the interfering pulse. In severe cases significant improvement can be had over a correlation receiver …

Binary Communication Systems Using Wideband Signals (Final Report V.Ii), J. C. Hancock, W. D. Wade

Department of Electrical and Computer Engineering Technical Reports

It has been pointed out that communication systems having wideband signal waveforms have certain advantages over the conventional narrowband systems. This report describes the results of a research program which examined in detail the information efficiency of wideband systems. The results presented in this report fall into three major categories: (1) analysis of systems utilizing linear receivers (i.e. synchronous receivers , etc.), (2) analysis of system utilizing non-linear receivers, and (3) analysis and description of methods which can be used for realizing certain optimum and sub-optimum wideband receivers. The development of these topics is based on the geometrical concept of …