SEI’s transportation engineers provide a full package of services to take roadway and intersection projects from concept to completion. Registered and experienced, they offer quality management and technical expertise in transportation planning that covers all types of roadways and all phases of construction and implementation – whether it’s for improving intersections, widening existing roads or building new ones.
Every SEI transportation design project is preceded by in-house surveying and supported by SEI traffic engineering and environmental services. Their aim is to make roadway plans approvable, cost-effective, safe and efficient for public use. For this reason, most transportation projects stay completely in house. This minimizes time spent on coordinating, and shifts the emphasis to quality control and customer satisfaction.
Using the latest CADD/GIS modeling techniques, SEI’s transportation engineers identify community and policy issues, then work with the public and clients to determine the best solutions.
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Relevant Transportation Engineering Projects
- Cobb County DOT: Cooper Lake Road at King Springs Road
SEI designed a roundabout at this intersection for CCDOT. An intersection improvement was warranted due insufficient stopping sight distance approaching from the North along King Springs Road and an insufficient sight distance looking right approaching the form the South along King Springs Road. Additionally, the horizontal alignment of Cooper Lake Road has a non AASHTO standard curve for the current speed design. The roundabout has been placed on the centerline of Cooper Lake Road... - City of Sandy Springs: Morgan Falls Road
The redesign of Morgan Falls Road was complicated by several environmental issues therefore environmental screening, coordination and documentation began early with the appropriate regulatory agencies. Although this is a locally funded project, SEI completed coordination procedures typically used when performing National Environmental Policy Act (“NEPA”) and Georgia Environmental Policy Act (“GEPA”) regulatory coordination. The entire segment of Morgan Falls Road... - City of Sandy Springs: Sidewalk Project – Glenridge Drive, Mt. Vernon Highway to Abernathy Road
SEI performed 3D terrestrial laser scanning along Glenridge Drive in Sandy Springs, GA in support of a sidewalk and streetscape project. All utility services including sewer and water were further located by conventional survey methods to include structure depths. Scan data was used to create highly detailed roadway cross-sections and accurate spot elevations for design purposes. Through a combination of conventional survey data and the 3D scans, the existing and proposed underground utilities are being modeled 3 dimensionally... - City of Sandy Springs: Sidewalk Project – Glenridge Drive, Hammond Drive to Johnson Ferry Road
This project consists of adding or replacing sections of non ADA compliant sidewalks, providing ADA accessibility at intersections and driveways, relocating utilities, limited adding/replacing of curb and gutter, and improving existing drainage facilities along three separate roadway segments throughout the City. Designs are complicated along these segments of roadway due to the narrow right of way,... - Union City: SR 138 Project
SEI utilized survey grade GPS units to establish survey control throughout each route for Vertical (MSL) and horizontal control. These control points were confirmed for accuracy by running a level loop on each route. A robotic total station and total station were utilized to gather the data required for the Base Map. These include; topography, creeks, streams or ditches, storm water and sanitary sewer pipes and associated structures, curb, gutter, pavement, striping, traffic control devices, all above ground visible utilities, property corners, right of way markers and any unusual features... - Union City: Roosevelt Highway Project
The purpose of this State and Federally funded project was to add, improve and enhance the pedestrian facilities along these corridors. All of SEI’s disciplines were involved in the performance of this contract. Included in these improvements was the upgrade of many intersections and signal modifications for ADA compliance, such as Roosevelt Highway at Lower Dixie Lake Road, Raymond Drive and Gresham Street... - Union City: Lester Road Project
This project is a State funded TE project subject to regulations outlined in the National Environmental Policy Act (“NEPA”) and/or Georgia Environmental Policy Act (“GEPA”). It was found that no archaeological or historical features will be affected by any portion of the project therefore a Programmatic Categorical Exclusion (PCE) has been applied for. SEI also performed a JD and provided regulatory coordination with the U.S. Army Corps of Engineers (“USACE”)... - Cobb County DOT: Transit Supportive Sidewalks: N. Cobb Parkway, Hicks Road, County Services Parkway
SEI worked closely with Cobb County DOT and GDOT to design and engineer these roadway enhancements in an effort to improve pedestrian access to CCT transit stops as well as improve connectivity and pedestrian safety. This project consists of adding or improving CCT-approved bus stops & adding 5’ sidewalks along both sides of a ½ mile corridor of North Cobb Parkway from Bells Ferry Road south to the Canton Road Connector. All roadway segments have been designed or redesigned to meet current Cobb County and GDOT roadway standards... - Cobb County DOT: East West Connector at Fontaine Road
This project included the addition of a northbound free flow right turn lane off Fontaine Road at the intersection with the East West Connector. The purpose of the intersection improvement is to improve the traffic operations and enhance the safety of this intersection. The challenge of the project was to design the free flow lane... - Serenbe Mixed-Use Development
SEI is providing planning coordination, civil engineering and surveying services in support of this nearly 1000 acre, mixed use, sustainable development. Serenbe is the result of a national effort of specialists. Serenbe is a somewhat unique development model in that it is composed of densely concentrated “hamlets” which allows for the conservation of key natural...
