This Texas train system is on track to keep operations green, thanks to a Houston-based company. Rendering courtesy of Texas Central

Texas Central, developers of the high-speed train proposed to run between Houston and Dallas, has selected a Houston-based company to oversee the environmental side of the project: Resource Environmental Solutions will help protect and enhance natural ecosystems and the environment throughout construction and operations.

RES will oversee plans to comply with US Army Corps of Engineers' requirements that the project restore, enhance, and preserve wetlands, streams, and environmentally sensitive habitats along the train's route between Houston and North Texas.

According to a release, RES is the largest ecosystem restoration provider in the United States. In the past decade, it has restored more than 58,000 acres of wetlands, enhanced more than 290 miles of streams, and planted more than 14 million restorative trees.

Recent projects include Maurepas Swamp in Louisiana, the Brooks Creek Wetland Mitigation Bank in Bowie County, and the Robinson Fork Stream Mitigation Bank, the largest floodplain restoration project in the northeastern United States.

RES is also working on the Bois d'Arc Lake Mitigation Area, a 16,600-acre reservoir being built in Fannin County to provide water services to 80 communities in North Texas that's the largest permittee-responsible mitigation project in U.S. history. The restoration area encompasses more than 8,500 acres of wetlands, 70 miles of streams, 3,200 acres of native grasslands, and 2,600 acres of non-wetland forests.

RES will help Texas Central meet regulatory requirements for environmental mitigation, collaborating with community leaders to identify local and regional conservation opportunities. The plan includes rebuilding and restoring wetlands and streams in the impacted watersheds, enhancing the viability of sub-watersheds that are close to the route.

Brian Trusty, VP of the Audubon Society, gives a thumbs up, stating that "Audubon believes the project is a win-win opportunity for both Texans and the wildlife in our state."

"Providing large-scale transportation opportunities that work to reduce carbon emissions, while supporting further economic prosperity and connectivity between the Dallas and Houston metro areas, is progressive and forward-looking," Trusty says. "Partnering with RES ensures the project will be done right, and we are thankful to see Texas Central take this step."

The project's scale will allow RES to identify not only isolated pockets along the route that require restoration, but also entire complexes of streams and wetlands suitable for improvement and conservation.

RES will select mitigation sites and designs that collectively improve the ecological functions of broad areas, including some near the Trinity River, Navasota River, Spring Creek, and Cypress Creek.

This environmental work, combined with innovations of an all-electric high-speed train system, will provide the most environmentally friendly travel choice between Houston and North Texas. The train is estimated to remove more than 14,630 cars per day from I-45.

Other ecological benefits:

  • As compared to highway development, for every one mile of high-speed railroad tracks, about 450 acres of farmland will be preserved.
  • The all-electric system will utilize the latest in green technologies, such as regenerative braking systems.
  • Texas will use the newest generation of Shinkansen trains, the N700 Supreme, which consumes seven percent less energy and weighs seven tons less than the previous model. Lighter trains result in less noise, vibration, and impacts on materials and land.
  • The route largely follows existing rights-of-way corridors, resulting in the fewest possible impacts to socioeconomic, natural, physical and cultural environments.

Consistent with Texas Central's commitment to create opportunities for small, minority, women, rural, and veteran-owned businesses, RES has engaged several small businesses to support its work for the project.

RES CEO Elliott Bouillion says in a release that it's possible to achieve both "environmental sustainability and advanced infrastructure."

"Texas high-speed train is an excellent example of how a modern, green infrastructure approach can be harnessed for both ecological and economic benefits," he says.

------

This story originally ran on CultureMap.

Ad Placement 300x100
Ad Placement 300x600

CultureMap Emails are Awesome

2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

———

This article originally ran on CultureMap.