Wednesday, May 8, 2024

The Riveting Events of Ms. Chao's Drowning in a Tesla X

Click for the full article by Michael L. Sena 

Wiki: Ms. Angela Chao was chairwoman and chief executive of her family's shipping business, the Foremost Group, which operates a global fleet of bulk carrier ships. The Chaos have a net worth of $14.2 billion, according to Forbes.


<quote>This incident became international news for two reasons: 1) the person who drove the car was well known and very wealthy; 2) the person was the sister of Elaine Chao, who is both a former U.S. Secretary of Transportation and the wife of the current U.S. Senate Minority Leader, Mitch McConnell. The fact that the car was a TESLA added to the interest because the reason the car ended up in the water was linked to TESLA's unconventional gear-shifting design.

Approximately 400 people die each year in the U.S. in car accidents involving vehicle submersion. That is, the car enters the water and the person cannot get out before the inside of the car fills up with water and the person drowns. Four hundred is around 1% of all U.S. traffic-related deaths. We don't know how many of those deaths were intentional, or 'autocide' to use the official term, with the driver using the vehicle and water rather than intentionally colliding with an oncoming car or purposely steering their car into a tree. What we do know is that it is effective, because once a car is in the water and sinking, it is not easy for the driver or occupants to get out of the car, especially with most newer-model vehicles that have power windows and automatic door locks. That's the problem. A great deal of care is dedicated by car designers to how we enter and exit cars under normal conditions, and doors and windows are controlled, but cars are not designed for easy exit once they have entered into and are submerged under water, as the Angela Chao incident illustrates. 

It is not often that a car accident is described in such detail as the one involving Angela Chao. The entire event had many witnesses as the drama played out over two hours between when the car entered the water and when the victim was pronounced dead. Among the witnesses was Ms. Chao herself, who made a phone call to a friend as soon as the car was in the water, and she continued to talk to this person for eight minutes, relating the status of the water level rising inside the car and providing details of how the car ended up in the water. What we know about the incident is what was released by the police in a public report. Ms. Chao had invited seven close friends to the 4,500-acre ranch owned by her and her husband for a weekend party to celebrate the Chinese New Year. 

The party took place in a cottage on the ranch some distance from their home. The cottage is in close proximity to a pond. At around 11:37 p.m., security footage captured Chao walking alone and unsteadily to her vehicle, a Tesla Model X, wrapped in a blanket and holding a phone in her right hand. As she attempted a three point turn, the vehicle suddenly "shot backwards" down an embankment (or over a retaining wall; there are two variants of the story) and into the pond at 11.38. A toxicology report, ordered as part of the investigation into her death, revealed that Chao had a blood alcohol concentration of 0.233, well above the legal driving limit of 0.08 in Texas. Chao called one of her friends who was at the party at 11:42 p.m. At this point she had not followed the first rule of surviving a water-related accident, and the call violated the second rule.

Rule #1: When a car is entering the water, open a window and prepare to exit the vehicle as soon as it hits the water. The vehicle's electrical system should continue to function for at least a few minutes, so even electric window controls should work.

Rule #2: Don't waste precious time calling the emergency services until you are out of the vehicle. They won't get to you in time to keep you from drowning. A car can fill up with water in 60 seconds; the Tesla Model X took eight minutes.

The vehicle at this point was apparently floating but sinking slowly during the eight-minute phone call. Chao told her friend she had put the car in reverse instead of drive—a mistake she had made before, she told her friend—causing the vehicle to go over an embankment and into the pond. She told her friend that the water was rising inside the car, and she was going to die.

Someone (Another friend at the party?) called 911. Emergency units arrived at 12.23. a.m. We don't know if the inside of the car had filled with water at this point. Rescuers stood on top of the submerged vehicle and tried unsuccessfully to enter the vehicle, attempting to break the windows with a pole. A tow truck arrived, but the Tesla was over 20 meters from the shore, too far into the pond for the truck's chains to reach it. Additional emergency responders then arrived with diving gear and managed to break a side window, extracting Chao from the vehicle at approximately 12:56 a.m. EMS responders performed "advanced life support" for 43 minutes in an attempt to resuscitate her, but she was ultimately pronounced dead at 1:40 a.m. <end quote>


Wednesday, January 10, 2024

What Are the Best things Drivers Can Do to Improve their Driving Record?

My brief expert opinion in WalletHub:


Why is it important for drivers to check their Driving Record?

Much like people's credit scores and records, drivers need to inspect their driving records and be aware of relevant laws. There may be errors in the record that need correction. Also, incidents that occurred many years ago may still be listed although applicable law requires them to be expunged after, say, five years.

How often should drivers check their Driving Record?

Drivers should inspect their driving record if there is a change in their insurance premium if they plan to shop for and change insurance carriers, or every five years at the latest.

What is the best thing to do if drivers see an error on their Driving Record?

Drivers need to contact the DMV or relevant authority to request a correction and inform their auto insurance carrier of the error.

What are the best things drivers can do to improve their Driving Record?

Traffic safety clinics and defensive driving schools are good places to start improving a problematic driving record. Issues with drugs and alcohol must be dealt with; at a minimum, alternatives need to be found to avoid impaired driving at all times. Drivers with a propensity to speed would benefit by joining car racing clubs which provide safe ways to drive at high speed at race tracks and other venues off the public roads.

Is it Fair for Car Insurance Companies to Consider Gender, Age and Driver Occupation?

My brief expert opinion in WalletHub:

Insurance companies are under substantial strain from increasing losses due to many reasons such as extreme weather (e.g., floods that damage vehicles), increasing number of crashes and fatalities, increasing rates of distracted and impaired drivers (e.g., more states have legalized marijuana), etc.

These losses have necessitated increases in premiums. A fairer distribution of increases is done by assessing risk factors and assessing higher premiums for higher-risk drivers. Young male drivers and occupations with driving as a major part of the job (e.g., Uber, delivery workers) are examples of groups associated with higher crash involvement rates.

I have a good example of risk-based car insurance premiums in my own household. My spouse and my daughter have their own car and insurance. Both are insured by the same insurance company, and both drive 2018 model compact cars of similar market value. My spouse is a white-collar worker in her late 40s. My daughter is a 21-year-old college senior; her premium is 65% higher than her mom's!


Thursday, October 5, 2023

2023's Greenest Cities in America

 My commentary in WalletHub's ranking of US green cities.

Honolulu ranked 2nd out of 100. Reno did well at 33.

Should cities invest in going green? What are the benefits?

Environmental and transportation solutions need to be tailored to an area's specific characteristics. Solutions for Tokyo are likely less suitable for Chicago. Cities with acute pollution issues should focus on smart city mitigations targeting pollution, such as electrification of bus fleets and incentives for EVs. Cities with acute traffic congestion should focus on smart city congestion mitigation, such as adaptive traffic signal management and intelligent time-dependent road pricing.

What policies or investments offer the biggest bang for the buck?

Smart traffic management for both arterial streets and freeways is the most common low-hanging fruit with moderate costs and substantial congestion and pollution reduction. Priority lanes and traffic signal preemption for Bus Rapid Transit are cost-effective smart city improvements for public transport.

How can state and local authorities attract renewable energy companies and other green businesses?

By incentivizing the electrification of transportation, substantial new demand is generated which creates a need for power supply, which in turn, makes the establishment of new renewable energy suppliers welcome. A conducive framework for power purchasing agreements needs to be in place.

What are some easy ways individuals can go green without much cost or effort?

Several smart home solutions are affordable and effective in reducing power and fuel consumption. Hybrid light-duty vehicles are presently the most cost-effective choice for commuting and highway travel. Unfortunately, recycling is more of a feel-good initiative than an effective green option given that less than 10% of what is put into recycling collections is actually recycled, reused, or repurposed.

In evaluating the greenest cities, what are the top five indicators?

A generic list may serve as a guideline, but each city needs to focus on its most acute issues and deploy smart solutions that its taxpayers can afford, for mitigations.

Wednesday, May 17, 2023

Consumer Reports Can Be Wrong!

CONSUMER REPORTS: Can the Grid Handle EVs? Yes! 

They should really study this series: The EV transition at scale poses daunting challenges



 Dear Chris,

The answer in your blog is incorrect. It is predicated on:

"...Americans drive approximately 2.9 trillion miles a year,..." and "...The average efficiency of all 20 comes to 3.1 miles per kilowatt hour. "

Totals and averages can be grossly misleading and this is the case here.

Total power generation capacity may match total EV KWh demand over the course of a year. But this totally ignores diurnal patterns and Peak Demand periods! The grid often has a hard time providing enough power for the usual demands plus a/c on hot and humid days.

Some locations have spare capacity, some are nearly maxed out (California, Hawaii, many others), and the US grid is far from being interconnected to cover demand deficits.

This question can be answered with reasonable confidence only at the local/regional level based on historical patterns of daily KWh consumption, along with specific forecasts of EV in traffic by type... car, SUV, pickup, delivery truck, long distance truck.

-- 
Panos D. Prevedouros, PhD
Reno, Nevada
Past Chairman and Professor Emeritus
Civil and Environmental Engineering
University of Hawaii at Mānoa