Latest news with #MDOT
Yahoo
17 hours ago
- Business
- Yahoo
Infrasense Completes TSD and GPR Analyses in Mississippi
Infrasense was tasked with carrying out evaluations of approximately 200 lane-miles of traffic speed deflectometer (TSD) and additional 3D ground penetrating radar (3DGPR) data collected throughout the state of Mississippi. The evaluations included combining the TSD data with pavement layer thicknesses determined from the onboard 3DGPR system to calculate pavement layer moduli, structural number, remaining life, and recommended asphalt overlay thickness. CANTON, Miss., June 4, 2025 /PRNewswire/ -- Infrasense has evaluated approximately 200 lane-miles of traffic speed deflectometer (TSD) data and 25 channels of 3DGPR data collected by MDOT at various locations across Mississippi. Previously identified project segments were reviewed by Infrasense and MDOT to prioritize areas requiring more detailed analysis. Five project sections, each spanning approximately five miles in length, were identified and analyzed. Deliverables for these evaluations included the calculation of pavement layer moduli, structural number, remaining life, and recommended asphalt overlay thickness. These were reported in a comprehensive spreadsheet with each measurement location including SRI (Standard Route Identifier), Log Mile, latitude, longitude, asphalt thickness, base thickness, alongside results of all analyses. The 3DGPR data analysis included extraction of the 25 channels, spaced 3 inches apart, preprocessing of the extracted channels using calibration data, tracking of the layer boundaries, and layer thickness reporting. The layer thickness was reported at locations based on the TSD GPS coordinates. The 3DGPR data, which provided 6-foot-wide coverage from wheel path to wheel path, was reviewed to identify possible areas of high base moisture content and stripping within asphalt layers within the five project sections. The TSD data, in conjunction with the associated layer thickness data from the GPR analysis, was analyzed to assess subgrade modulus, asphalt, base layer (when applicable) modulus, effective structural number, equivalent single axle loads (ESALS) to failure, estimated remaining service life and recommended asphalt overlay thickness. Included in the comprehensive TSD data evaluation was the identification of anomalies (e.g., weak pavement layers, soft subgrade), assessment of layer moduli to determine layer coefficients, and identify deficient layers. Following the analyses of the 3DGPR and TSD data, including deflections, existing layer thickness, areas of distress, and estimated traffic levels, recommendations for rehabilitation (e.g., base repair, asphalt layer patching, overlays) were made. These recommendations will assist in developing expansive corridor planning and management strategies for critical Mississippi roadways. About Infrasense, 1987, Infrasense, Inc. has applied advanced technologies to address the most difficult challenges in subsurface scanning. Infrasense's engineers nondestructively extract critical information from a diverse range of structures. In addition to providing ongoing subsurface evaluation services to clients across the country, the firm has also conducted numerous research programs to advance the field of subsurface detection and nondestructive evaluation. To learn more about Infrasense and the services we provide, visit our website: View original content to download multimedia: SOURCE Infrasense, Inc. Sign in to access your portfolio
Yahoo
18 hours ago
- Business
- Yahoo
Infrasense Completes TSD and GPR Analyses in Mississippi
Infrasense was tasked with carrying out evaluations of approximately 200 lane-miles of traffic speed deflectometer (TSD) and additional 3D ground penetrating radar (3DGPR) data collected throughout the state of Mississippi. The evaluations included combining the TSD data with pavement layer thicknesses determined from the onboard 3DGPR system to calculate pavement layer moduli, structural number, remaining life, and recommended asphalt overlay thickness. CANTON, Miss., June 4, 2025 /PRNewswire/ -- Infrasense has evaluated approximately 200 lane-miles of traffic speed deflectometer (TSD) data and 25 channels of 3DGPR data collected by MDOT at various locations across Mississippi. Previously identified project segments were reviewed by Infrasense and MDOT to prioritize areas requiring more detailed analysis. Five project sections, each spanning approximately five miles in length, were identified and analyzed. Deliverables for these evaluations included the calculation of pavement layer moduli, structural number, remaining life, and recommended asphalt overlay thickness. These were reported in a comprehensive spreadsheet with each measurement location including SRI (Standard Route Identifier), Log Mile, latitude, longitude, asphalt thickness, base thickness, alongside results of all analyses. The 3DGPR data analysis included extraction of the 25 channels, spaced 3 inches apart, preprocessing of the extracted channels using calibration data, tracking of the layer boundaries, and layer thickness reporting. The layer thickness was reported at locations based on the TSD GPS coordinates. The 3DGPR data, which provided 6-foot-wide coverage from wheel path to wheel path, was reviewed to identify possible areas of high base moisture content and stripping within asphalt layers within the five project sections. The TSD data, in conjunction with the associated layer thickness data from the GPR analysis, was analyzed to assess subgrade modulus, asphalt, base layer (when applicable) modulus, effective structural number, equivalent single axle loads (ESALS) to failure, estimated remaining service life and recommended asphalt overlay thickness. Included in the comprehensive TSD data evaluation was the identification of anomalies (e.g., weak pavement layers, soft subgrade), assessment of layer moduli to determine layer coefficients, and identify deficient layers. Following the analyses of the 3DGPR and TSD data, including deflections, existing layer thickness, areas of distress, and estimated traffic levels, recommendations for rehabilitation (e.g., base repair, asphalt layer patching, overlays) were made. These recommendations will assist in developing expansive corridor planning and management strategies for critical Mississippi roadways. About Infrasense, 1987, Infrasense, Inc. has applied advanced technologies to address the most difficult challenges in subsurface scanning. Infrasense's engineers nondestructively extract critical information from a diverse range of structures. In addition to providing ongoing subsurface evaluation services to clients across the country, the firm has also conducted numerous research programs to advance the field of subsurface detection and nondestructive evaluation. To learn more about Infrasense and the services we provide, visit our website: View original content to download multimedia: SOURCE Infrasense, Inc. Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
Yahoo
3 days ago
- Business
- Yahoo
MDOT begins 13-mile upgrade to I-20
RANKIN COUNTY, Miss. (WJTV) – Officials with the Mississippi Department of Transportation (MDOT) said a project calling for the removal and replacement of 13 miles of Interstate 20 from the East Brandon Interchange to the Scott County line is now underway. The project provides fog sealing for six miles of I-20 from the Pearson Road interchange to the Crossgates Boulevard interchange. US 80 bridge rehab in Hinds County set for fall completion Officials said the project includes milling and overlaying the existing OGFC pavement, failed area repairs in underlying concrete pavement, joint and crack sealing, tree clearing, cleaning of drainage structures, and upgrades to deficient guardrail. The estimated completion date is fall 2026. Close Thanks for signing up! Watch for us in your inbox. Subscribe Now Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Yahoo
4 days ago
- Climate
- Yahoo
MDOT advises prepping for 2025 Hurricane Season
JACKSON, Miss. (WJTV) – The 2025 Atlantic Hurricane Season will run from June 1 to November 30. The Mississippi Department of Transportation (MDOT) is reminding residents, businesses and community organizations across South Mississippi to have a preparedness plan in place before a storm threatens the Mississippi Gulf Coast. 'Now is an ideal time to prepare for the 2025 Hurricane Season, before we see a lot of activity in the tropics,' said Commissioner Charles Busby, Southern Transportation District. 'With the 20th anniversary of Hurricane Katrina coming up this year, I cannot over-emphasize the importance of disaster planning and educating yourself on how to evacuate if needed.' NOAA predicts above average 2025 hurricane season: How many storms US could see The 2025 MDOT Hurricane Evacuation Guide features information such as evacuation routes and tips, contraflow information, radio coverage areas through Mississippi Public Broadcasting and important contact information for the Mississippi Highway Patrol, American Red Cross, Mississippi Emergency Management Agency (MEMA) and bordering state DOTs and highway patrols. Information on shelters, pet care, lodging and travel resources is also included. You can download the guide at or order free printed copies at Guides are available in English, Spanish and Vietnamese. If a hurricane forces an evacuation along the Mississippi Gulf Coast, evacuation routes will likely see a sudden increase in traffic volume. MDOT officials said drivers should have a plan and allow ample time to get to their destination safely. Close Thanks for signing up! Watch for us in your inbox. Subscribe Now Copyright 2025 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Yahoo
4 days ago
- General
- Yahoo
Zipper merge: MDOT podcast will discuss safety, rumble strips, construction
With construction underway on Michigan roads, it's a certainty you'll need to merge down to one lane at some point: State officials are urging drivers to "zipper" merge, a method to navigate congested highway work zones. The Michigan Department of Transportation recommends the zipper merge amid construction, allowing drivers to use both lanes as long as possible and then take turns merging into one lane. State transportation officials on this week's Talking Michigan Transportation podcast, will discuss zipper merging during a conversation about efforts engineers take to balance mobility and safety during active road work. Lindsey Renner, division administrator for Construction Field Services at MDOT and a former supervisor of the Work Zone Safety section, also will explain the challenges involved and discuss innovative methods such as rumble strips, speed trailers and law enforcement employing a "Ghost Rider" program to identify distracted drivers. Here's what to know. The Talking Michigan Transportation podcast features conversations with transportation experts inside and outside MDOT and will touch on anything and everything related to mobility, including rail, transit and the development of connected and automated vehicles. You can listen to the current and past podcast episodes online. A zipper merge is when traffic merges into one lane on a road, alternating to use one lane through construction. If you're entering a zipper merge on the road, look for signs advising drivers to use both lanes take turns, MDOT said. MDOT uses the zipper merge in construction zones where there is a bottleneck, typically on roads in congested, urban areas, the department says. It's important for drivers to follow instructions on signs and treat other drivers with respect to make the process safe and effective, MDOT says. Drivers should never block lanes or try to control the flow of traffic during a zipper merge. The Michigan State Police have recommended the process numerous times. "When approaching a construction zone in which a lane is reduced, remember to use the zipper merge. To keep traffic moving, drivers should use both lanes, with drivers taking turns alternating into the open lane," MSP said in a 2022 post on X. Law enforcement officials from the Michigan State Police patrol for distracted drivers in unmarked vehicles. The initiative uses unmarked spotter cars with a law enforcement officer in the passenger seat monitoring for distracted drivers. Once spotted, a visible law enforcement unit is radioed in to conduct a traffic stop. 'Driver inattention is the leading factor in most crashes and near crashes," said 1st Lt. Mike Shaw, public information officer at the Metro Detroit Michigan State Police, in a post on X. "Distracted drivers are a threat to themselves, their passengers, and anyone else on the road to include pedestrians and bicyclists." Contact Jenna Prestininzi: jprestininzi@ This article originally appeared on Detroit Free Press: MDOT podcast on construction safety, zipper merge, rumble strips
