Free Republic

Development of a proposed hyperloop transportation system linking Pittsburgh, Cleveland and Chicago would not only be a boon to communities along the travel corridors but also would be a strong business investment. That’s the conclusion of a 157-page feasibility study released Monday in Cleveland by the Northeast Ohio Areawide Coordinating Agency and Hyperloop Transportation Technologies Inc., a California-based company developing the technology to move passengers and freight at more than 500 mph through low-pressure tubes. Consultant Transportation Economics and Management Systems performed the $1.3 million study of the proposed Great Lakes Hyperloop System. For the first time, the study estimated...

Three years after the colossal failure of demonetisation the Narendra Modi government has embarked on a similar venture, the FASTag programme, this time targeting road users across the country. But just a day before the November 30 deadline, by which date all vehicles plying the highways would have been mandatorily required to affix an RFID (Radio Frequency Identification) tag on their vehicles, the government blinked. And, like demonetisation, the design of this scheme also reflects a simpleton’s naivete. The announcement that those without the tag would be charged double the tariff at the toll gates set off a firestorm of...

New analysis of projected provincial gas tax revenues in Ontario has revealed that that source of provincial funding will fall much more dramatically than predicted just five years ago due to increased use of electric vehicles and other factors. And so, concludes Trent University professor emeritus Harry Kitchen in a new report titled Ontario’s Downward Trend for Fuel Revenue: Will Road Pricing Fill the Gap?, the provincial government must look for other sources of revenues to build transportation infrastructure. Kitchen recommends road pricing, such as tolls and HOT lanes, with funds raised earmarked for future transportation improvements, and dynamic parking...

Leaders within the Pennsylvania Department of Transportation have approved a public-private partnership to reconstruct a portion of Interstate 81. PennDOT’s P3 Board approved the project, which will involve the reconstruction of a 4.5-mile section of the route near Wilkes-Barre, on Dec. 4. Wilkes-Barre, the seat of Luzerne County in northeastern Pennsylvania, is 20 miles southwest of Scranton. The project will involve widening a portion of I-81 to three lanes in both directions, realigning 2.5 miles of southbound interstate and replacing eight bridges. Other safety measures include eliminating a left-hand exit and improving a substandard weave distance between two routes that...

This video continues our study of ancient construction techniques. It presents the argument that the base casing stones of the most familiar pyramids may have been molded by some technology which used geopolymers (stone slurry?) This is similar to the speculation that the Incan stone walls were constructed using a similar process.

A video on a hypothesis that the Inca stone walls in Peru were actually constructed by using a stone slurry packed into containers and hardened by fire/ This is a follow up to the previous thread about technology needed to cut precision stonework for the Egyptian pyramids and monuments. It hypothesizes a new theory of building neolithic stoneworks with techniques that are still used today, albeit in much smaller adobe structures.

A construction worker who became a witness in a federal workplace safety investigation after he was injured during the collapse of a new Hard Rock Hotel in New Orleans was deported by immigration authorities Friday, his lawyers said. The worker, Delmer Joel Ramirez Palma, had to scramble to stay alive while metal and debris rained down and parts of the 18-story structure pancaked around him and killed three of his colleagues on Oct. 12. Mr. Ramirez Palma had raised concerns about problems with the construction with supervisors multiple times, according to his lawyers. After the building crumbled around him, he...

The first-ever highway partially made of reclaimed plastic was inaugurated in Mexico on Nov. 13. The 2.5-mile stretch of highway in the state of Guanajuato in central Mexico used 1.7 tons of recycled plastic, or the equivalent of 425,000 plastic packaging units, according to Dow Plastics Technology Mexico. "The advantage of using recycled plastic products is that they can be used on all types of highways, not only in high-performance products, which can extend the life span of any paved road," Paula Sans, Dow Mexico's director of packaging and specialty plastics, said in a release. The newly paved stretch of...

The Twin Ports Interchange reconstruction project through Lincoln Park soared $100 million over budget this month, forcing planners to defer indefinitely portions of the work scheduled for 2020-23. The $343 million project is scheduled to begin in May. Minnesota Department of Transportation figures released Monday at a regular public meeting about the project showed a $443 million price tag. "This is what happens with every big project," Duane Hill, district engineer based in Duluth, said Monday. "You have to manage it as you go along. We thought we did a good job initially coming up with a budget for this...

A study of the public-private partnership project delivery method has some cautionary advice for governments and contractors considering them. Entitled "Highway Robbery: Public Private Partnerships and Nova Scotia Highways" by the Canadian Centre for Policy Alternatives, the study urges jurisdictions to stop using the model to build highways. The report concludes that governments should instead employ traditional public procurement, based on its findings that contracting out services through a P3 is more expensive than public procurement, has the potential to compromise highway safety, needlessly duplicates government services and lacks mechanisms for public accountability. “Public infrastructure and services should remain fully...

Presidential candidate Joe Biden has released an infrastructure plan that calls for $1.3 trillion in investment over 10 years. The plan, released Nov. 14, makes a pledge to update the nation’s freight infrastructure, from highways and canals to railroads and tunnels. Biden plans to spend $50 billion over the first year of his presidency to repair roads, highways and bridges. He proposes a new $40 billion, 10-year Transformational Projects Fund, which will provide substantial grants for projects that are too large to be funded through existing programs, such as a major port upgrade or new tunnel. Biden also plans to...

In the latest step toward the rebirth of San Francisco’s Presidio from an aging former Army base to a bright light of America’s national park system, crews are set to break ground Thursday on a project to build a new 14-acre public park on top of two freeway tunnels near the Golden Gate Bridge. When finished in 2021, the unusual project, called Tunnel Tops, will link Crissy Field, on San Francisco’s waterfront, to the Presidio’s Main Post, parade grounds and visitor’s center. That connection was severed more than 80 years ago when the road to and from the Golden Gate...

With few exceptions, states are losing the battle with aging bridges in need of repair or replacement. Even states with low percentages of bridges rated poor are finding it difficult to keep up with bridge and road systems that in many cases are 50 years old or older. Utah, which ranks fourth for the lowest percentage of poor bridges, programs a bridge for repair or replacement in the year after it drops to a poor rating, completing the project within four or five years. The Utah Department of Transportation notes, though, that the number of bridges falling from good to...

Maryland and Virginia will partner to rebuild and widen the American Legion Bridge in a ­billion-dollar project to relieve congestion at the Washington region’s worst traffic bottleneck, the states’ governors announced Tuesday. In an unusual example of interstate cooperation, Virginia has agreed to help pay for the project even though most of the bridge — like the Potomac River flowing beneath it — belongs to Maryland. The plan marks a breakthrough in a years-long impasse over widening the bridge on the northwestern stretch of the Capital Beltway. In the past, Maryland has said it didn’t have enough money for the...

The last time the National Transportation Safety Board came down hard on engineering and construction was in 2007. That year, the board delivered reports on the collapse of the I-35 Highway Bridge in Minneapolis that killed 13 people, and on a ceiling collapse in a Boston Central Artery tunnel that killed one motorist. Both involved completed structures. With its final investigation findings, the board also made recommendations for new standards and procedures and quality control. NTSB's report on last year’s Miami bridge collapse at Florida International University in mid-construction, which killed five motorists and one construction worker, has similar recommendations....

A bridge-building disaster should be incomprehensible in today’s technical world. Humans have been building bridges for centuries. The science should be well sorted out by now — and for the most part, it is. But the National Transportation Safety Board’s investigation of the March 2018 collapse of the FIU pedestrian bridge highlighted basic design flaws and a complete lack of oversight by every single party that had responsibility to either identify the design errors or stop work once it was clear that there was a massive internal failure. We all know “what happened” here. But the “why” is more elusive....

For more than 25 years, the Federal government has let the Highway Trust Fund, the source of money for Federal infrastructure projects, lose it's purchasing power. That's because the gas tax has been stuck at 18.4 cents per gallon for gasoline and 24.4 cents for diesel fuel since 1993. While construction costs have increased 125% since 2003, funding has not. Instead of waiting for Washington to get it together, states have taken it upon themselves to fund their own infrastructure projects. Since 2013, 31 states and the District of Columbia have enacted legislation that will increase or may increase overall...

LECANTO — When Florida lawmakers signed off this year on a bill creating more than 300 miles of toll roads, they did so with scant evidence the project was needed. More than five months later, after Gov. Ron DeSantis signed it into law and the project has been vetted in two rounds of public hearings, local officials are growing frustrated by the persistent lack of details about what would be the largest expansion of Florida’s toll system in decades. “We’re beating a dead horse right now before it’s even born,” said Dixie County Commissioner Mark Hatch, who sits on a...

I-4 Ultimate’s promise five years ago was that private financing and management would make Florida’s largest road reconstruction project better, faster and cheaper. Today, the 21-mile and $2.3 billion rebuilding of Interstate 4 through metro Orlando is slogging through rising costs to an uncertain finish date, with crews working day and night under the pall of repeated worker fatalities. Some of the issues: - The fifth death of a construction worker last month that preliminary findings say would have been avoidable with a more cautious approach to bridge building that SGL Constructors made mandatory this month. - Construction consortium I-4...

The Romans were some of the most sophisticated builders of the ancient world. Over the centuries, they adopted an increasingly advanced set of materials and technologies to create their famous structures. To distinguish the time periods over which these improvements took place, historians and archaeologists typically measure the colours, shapes and consistencies of the bricks and mortar used by the Romans, along with historical sources. In new research published in EPJ Plus, Francesca Rosi and colleagues at the Italian National Research Council improved on these techniques through scientific analysis of the materials used to build the Roman Forum's Atrium Vestae....