PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Millions of dollars saved when scheduled travel providers adapt to on-demand scheduling

New research based on commuter and traffic patterns

2021-07-20
(Press-News.org) CATONSVILLE, MD, July 20, 2021 - Uber and Lyft are popular on-demand ways to travel, but does that mean trains and buses are a thing of the past? Travelers prefer different modes of transportation at different times. So how can all these modes co-exist and do so successfully? New research in the INFORMS Journal Transportation Science has created a model and an algorithm to redistribute transit resources based on commuter preferences resulting in millions in savings.

"Based on case study experiments in New York City, our optimized transit schedules consistently lead to 0.4%-3% system-wide cost reduction. This amounts to rush hour savings of millions of dollars per day, while simultaneously reducing costs to passengers and transportation service providers," said Vikrant Vaze of Dartmouth College.

"Transit Planning Optimization under Ride-hailing Competition and Traffic Congestion," was written by Vaze alongside Keji Wei also of Dartmouth, as well as Alexandre Jacquillat of the Massachusetts Institute of Technology.

This study attempts to understand what would happen if a public transit agency were to explicitly consider commuter choice factors and what that would do to the commute when designing their schedules.

Commuters choose modes of transportation based on travel convenience, prices, travel times and traffic congestion. The authors have found that the opposite is also true - their choice in turn changes the traffic patterns and travel times.

The authors note that by considering both of these points, they can come up with a better alignment of available transportation options with passengers' preferences in mind - by redistributing public transit resources where they provide the strongest societal benefits.

"In the interest of the overall urban ecosystem, a transit operator should critically assess what kinds of trips and travel needs transit is better equipped to serve and at the same time, what are some of the areas where it might be better to cut down and let on-demand operators take up a larger proportion of trips. Such thoughtful reconfiguration can benefit diverse stakeholders simultaneously," continued Vaze, a professor in the Thayer School of Engineering at Dartmouth. "What we found is that this leads to schedules that are better for passengers, better for transportation operators and better for the city as a whole, a rare win-win-win."

INFORMATION:

About INFORMS and Transportation Science

Transportation Science is a premier peer-reviewed scholarly journal focused on research about all modes of transportation, present and prospective, and looks at planning and design issues and the related economic, operational and social concerns. It is published by INFORMS, the leading international association for operations research and analytics professionals. More information is available at http://www.informs.org or @informs.

Contact: Ashley Smith
443-757-3578
asmith@informs.org



ELSE PRESS RELEASES FROM THIS DATE:

New method for uninterrupted monitoring of solid-state milling reactions

New method for uninterrupted monitoring of solid-state milling reactions
2021-07-20
A team of chemists from the Croatian Ruđer Bošković Institute (RBI) described a new, easy-to-use method for uninterrupted monitoring of mechanochemical reactions. These reactions are conducted in closed milling devices, so in order to monitor the reaction one has to open the reaction vessel, thus interfering with the process. The new method uses Raman spectroscopy to get deeper insight into solid-state milling reactions, without the usual interruption of the chemical reaction process. Mechanochemical synthesis by milling is used today to prepare all ...

Public health summer program increases STEM career interests in high schoolers

2021-07-20
High school students who participated in summer programs about public health increased their interest in pursuing careers in science, technology, engineering and mathematics (STEM), according to a Rutgers study. Published in the journalPedagogy in Health Promotion, the study explored whether increasing public health awareness would motivate high school students to pursue public health careers. Researchers found that the summer program, Public Health: Outbreaks, Communities, and Urban Studies (PHocus) offered in 2018 and 2019 increased the students' knowledge in public health, epidemiology, urban public health and global public health. "Including interdisciplinary, authentic ...

Mayo research provides insights into high-risk younger demographics for severe COVID-19

2021-07-20
ROCHESTER, Minn. ? Using data from 9,859 COVID-19 infections, Mayo Clinic researchers have new insights into risk factors for younger populations, some of which differ significantly from their older counterparts. People younger than 45 had a greater than threefold increased risk of severe infection if they had cancer or heart disease, or blood, neurologic or endocrine disorders, the research found. These associations were weaker in older age groups. The study was published in Mayo Clinic Proceedings. The research team studied people living in a 27-county region of Southeast Minnesota and West Central Wisconsin surrounding Mayo Clinic in Rochester diagnosed with COVID-19 between March and ...

Coffee doesn't raise your risk for heart rhythm problems

2021-07-20
In the largest study of its kind, an investigation by UC San Francisco has found no evidence that moderate coffee consumption can cause cardiac arrhythmia. In fact, each additional daily cup of coffee consumed among several hundred thousand individuals was associated with a 3 percent lower risk of any arrhythmia occurring, including atrial fibrillation, premature ventricular contractions, or other common heart conditions, the researchers report. The study included a four-year follow up. The paper is published July 19, 2021, in JAMA Internal Medicine. "Coffee is the primary source of caffeine for most people, and it has a reputation for causing or exacerbating arrhythmias," said senior and corresponding author Gregory Marcus, MD, professor ...

New algorithm may help autonomous vehicles navigate narrow, crowded streets

New algorithm may help autonomous vehicles navigate narrow, crowded streets
2021-07-20
It is a scenario familiar to anyone who has driven down a crowded, narrow street. Parked cars line both sides, and there isn't enough space for vehicles traveling in both directions to pass each other. One has to duck into a gap in the parked cars or slow and pull over as far as possible for the other to squeeze by. Drivers find a way to negotiate this, but not without close calls and frustration. Programming an autonomous vehicle (AV) to do the same -- without a human behind the wheel or knowledge of what the other driver might do -- presented a unique challenge ...

Renewable energies: No wind turbine disturbing the scenery

Renewable energies: No wind turbine disturbing the scenery
2021-07-20
Wind energy is of outstanding importance to the energy transition in Germany. According to the Federal Statistical Office, its share in total gross electricity production of about 24% is far higher than those of all other renewable energy sources. "To reach our climate goals, it is important to further expand these capacities and to replace as much coal-based power as possible," says Professor Wolf Fichtner from KIT's Institute for Industrial Production (IIP). "However, there is considerable resistance, especially in beautiful landscapes." A team of researchers from KIT, the University of Aberdeen, and the Technical University of Denmark has now calculated what this means for the costs ...

Solar cells: Layer of three crystals produces a thousand times more power

2021-07-20
The photovoltaic effect of ferroelectric crystals can be increased by a factor of 1,000 if three different materials are arranged periodically in a lattice. This has been revealed in a study by researchers at Martin Luther University Halle-Wittenberg (MLU). They achieved this by creating crystalline layers of barium titanate, strontium titanate and calcium titanate which they alternately placed on top of one another. Their findings, which could significantly increase the efficiency of solar cells, were published in the journal Science Advances. electric crystals do not require a so-called pn junction to create the photovoltaic effect, in other words, no positively and negatively doped layers. This makes it much easier to produce ...

Study identifies MET amplification as driver for some non-small cell lung cancers

Study identifies MET amplification as driver for some non-small cell lung cancers
2021-07-20
A study led by D. Ross Camidge, MD, PhD, director of thoracic oncology at the University of Colorado School of Medicine and CU Cancer Center member, has helped to define MET amplification as a rare but potentially actionable driver for non-small cell lung cancer (NSCLC). Camidge says many of the major developments in the treatment of non-small cell lung cancer have come from defining molecularly specific subsets of the disease for which researchers have been able to develop targeted treatments. Until now, all of these subsets have been based on either genetic mutations or gene rearrangements ...

Revealing the secrets of cell competition

Revealing the secrets of cell competition
2021-07-20
As multicellular life relies on cell-cell interactions, it is not surprising that this is not always peaceful: cells with higher fitness eliminate cells with lower fitness through cell competition. Cell competition has emerged as a quality control mechanism and occurs when cells differ, genetically or otherwise, from each other. In mammals, the process of cell competition has been observed e.g., in cancer, during organ homeostasis, and during development as a process to select the fittest cells in the embryo and the adult. However, the features that distinguish "winner" from "loser" cells and whether there are key determinants for cell competition in various biological ...

Untrained beer drinkers can taste different barley genotypes

Untrained beer drinkers can taste different barley genotypes
2021-07-20
PULLMAN, Wash. - When it comes to craft beer, the flavor doesn't have to be all in the hops. As a panel of amateur beer tasters at Washington State University recently demonstrated, malted barley, the number one ingredient in beer besides water, can have a range of desirable flavors too. Researchers recruited a panel of about 100 craft beer drinkers to taste some so-called SMaSH beers--those brewed with a single barley malt and single hop. All the beers contained the same hop variety, called Tahoma, but each had a malt from a different barley genotype, or genetic makeup. Trained tasters can distinguish these easily, but even the untrained ...

LAST 30 PRESS RELEASES:

New study assesses impact of agricultural research investments on biodiversity, land use

High-precision NEID spectrograph helps confirm first Gaia astrometric planet discovery

ABT-263 treatment rejuvenates aged skin and enhances wound healing

The challenge of pursuit – how saccades enable mammals to simultaneously chase prey and navigate through complex environments

Music can touch the heart, even inside the womb

Contribution of cannabis use disorder to new cases of schizophrenia has almost tripled over the past 17 years

Listening for multiple mental health disorders

Visualization of chemical phenomena in the microscopic world using semiconductor image sensor

Virus that causes COVID-19 increases risk of cardiac events

Half a degree rise in global warming will triple area of Earth too hot for humans

Identifying ED patients likely to have health-related social needs

Yo-yo dieting may significantly increase kidney disease risk in people with type 1 diabetes

Big cities fuel inequality

Financial comfort and prosociality

Painted lady butterflies migrations and genetics

Globetrotting not in the genes

Patient advocates from NCCN guidelines panels share their ‘united by unique’ stories for world cancer day

Innovative apatite nanoparticles for advancing the biocompatibility of implanted biodevices

Study debunks nuclear test misinformation following 2024 Iran earthquake

Quantum machine offers peek into “dance” of cosmic bubbles

How hungry fat cells could someday starve cancer to death

Breakthrough in childhood brain cancer research could heal treatment-resistant tumors, keep them in remission

Research discovery halts childhood brain tumor before it forms

Scientists want to throw a wrench in the gears of cancer’s growth

WSU researcher pioneers new study model with clues to anti-aging

EU awards €5 grant to 18 international researchers in critical raw materials, the “21st century's gold”

FRONTIERS launches dedicated call for early-career science journalists

Why do plants transport energy so efficiently and quickly?

AI boosts employee work experiences

Neurogenetics leader decodes trauma's imprint on the brain through groundbreaking PTSD research

[Press-News.org] Millions of dollars saved when scheduled travel providers adapt to on-demand scheduling
New research based on commuter and traffic patterns