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Carbon Adsorption for VOCs Activated carbon adsorption is considered a best available control technology by the USEPA and other regulatory agencies. It is widely used in air pollution control applications to remove volatile organic compounds (VOCs) from low to medium concentration gas streams. Carbon adsorption is especially effective when strict discharge concentrations must be met...Learn More

Roadway Vertical Alignments Author: Gregory Taylor Roadway vertical alignments are a combination of parabolic curves and connecting tangent grades. Along with the roadway cross section (lanes and shoulders, curbs, medians, roadside slopes and ditches, sidewalks) and horizontal alignment (tangents and curves), the vertical alignment (grades and vertical curves) helps provide a three-dimensional roadway model. Its...Learn More

Roadway Geometric Design 5 Author: Gregory Taylor This course is the last in a series of five volumes that summarizes and highlights the geometric design process for modern roads and highways. Subjects covered include: interchanges (types, warrants); and grade separation structures (overpasses, underpasses). The contents of this document are intended to serve as guidance and...Learn More

Roadway Geometric Design 4 Author: Gregory Taylor This course is the fourth in a series of five volumes that summarizes and highlights the geometric design process for modern roads and highways. Subjects covered include: intersection types; alignments; profiles; sight distance; and roundabouts. The contents of this document are intended to serve as guidance and not...Learn More

Roadway Geometric Design 3 Author: Gregory Taylor This course is the third in a series of five volumes that summarizes and highlights the geometric design process for modern roads and highways. Subjects covered include: traffic barriers; local roads; collector roads; rural and urban arterials; and freeways. The contents of this document are intended to serve...Learn More