نتایج جستجو برای: highways and federal roads

تعداد نتایج: 16843781  

2012
Pejman Niksaz

As we know the population of city and number of cars is increasing day by day. With increasing urban population and hence the number of cars, need of controlling streets, highways and roads is vital. In this paper, a system that estimates the size of traffic in highways by using image processing has been proposed and as a result a message is shown to inform the number of cars in highway. This p...

Journal: :Transportnye sooruženiâ 2023

In the article, authors present main use results of mineral materials from local open cast mines for emulsion-mineral mixtures making «Slarri Sil» protective wearing course installation asphalt concrete pavements. The production using sand sifting crushing gravel was carried out on regional category III highways (according to traffic intensity) Amur Federal Highway passing through Region. accor...

2009
Abishai Polus Moshe Cohen

This study has three main objectives: 1 to develop new, theory-based, queuing relationships for the quality of flow on two-lane rural highways; 2 to estimate the relationships both from the empirical data that were collected on 15 two-lane rural highways and from the queuing models that were developed; and 3 to propose a new level-of-service variable that measures the quality of the flow both i...

Journal: :Social science, humanities and sustainability research 2023

The spirit of the “two roads” is extremely valuable spiritual wealth derived during construction and maintenance Sichuan-Tibet Qinghai-Tibet highways. It important manifestation national times strong motivation that urges Chinese people to realize great rejuvenation nation in new era. Coupled with abundant ideological implications, involves massive historical clues. In era, it significant profo...

Journal: :European Transport Research Review 2022

Abstract Weather has a substantial influence on people’s travel behavior. In this study we analyze if meteorological variables can improve predictions of hourly traffic counts at 1400 stations federal roads and highways in Germany. Motorbikes, cars, vans trucks are distinguished. It is evaluated how far the mean squared error Poisson regression models for reduced by using precipitation, tempera...

2012

In many developing countries, roads and highways are the dominant mode of transport. Road-based transport typically accounts for more than 80% of the distance travelled by individuals and more than 50% of that travelled by goods. Consequently, a country‟s road assets form a crucial backbone to any economy by seamlessly linking up people and goods to their respective markets, which in turn impro...

2015

City streets in this country represent an annual capital outlay of $3,133 billion, based on 1966 data. This figure is more than one-third of the total annual capital outlay for all streets and highways, $9,123 billion. Another $1,114 billion was spent annually for maintenance of city streets, so $4,247 billion was spent each year on city streets. O f this total $4 billion, $2.5 billion went to ...

2003
Leonard Phillips

Hot-mix asphalt (HMA) surfaces comprise about 90% of the highways and roads in the U.S. Highways and are typically engineered to last 15 years or more, but many have been failing early due to potholes, cracks, raveling, and other problems. This premature road failure unnecessarily wastes millions of taxpayer dollars every year. This paper describes a series of research studies that were conduct...

2012
Peter Múčka

The presented study compares three alternative straight-line approximations of the longitudinal road-profile power spectral density (PSD). The one straight line and two and three split straight-line approximations were analyzed. The minimizing of the root-meansquared error (RMSE) was used as criteria of goodness of fit for the approximation models. The statistics of the PSD approximation model ...

Journal: :Accident; analysis and prevention 2016
Mohamadreza Banihashemi

Horizontal alignment is a major roadway characteristic used in safety and operational evaluations of many facility types. The Highway Safety Manual (HSM) uses this characteristic in crash prediction models for rural two-lane highways, freeway segments, and freeway ramps/C-D roads. Traffic simulation models use this characteristic in their processes on almost all types of facilities. However, a ...

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