Samband mellan körstil och åkkomfort: förbättringspotentialen inom kollektivtrafiken. Kortversion

Download
Karl Kottenhoff
Jerker Sundström

Ride comfort constitutes part of the total comfort experience of a journey. It is a result of the interaction between the characteristics of the infrastructure and those of the vehicle, and not least a result of the driver’s handling. Poor ride comfort generally leads to low attractiveness of the public transportation system, mainly due to travelers being less relaxed and even unableto use the traveling time for reading. The motions of the vehicle can cause some passengers todevelop motion sickness and even tripping or fall accidents occur due to difficulty to keepbalance.The project aims to improve the knowledge level for the relationship between drivers' drivingstyle and ride comfort, including motion sickness. Comparisons of the ride comfort are madebetween bus and rail services and differences between drivers are also studied. A concretegoal is to provide basis for driver training and new support systems for drivers. Differencesand similarities between "eco driving" and good ride comfort are briefly addressed.The project began with interviews of bus and subway travelers and with measurements ofvehicle motions during normal service operation. In the autumn 2009, in-field experimentswere performed with test subjects who evaluated different driving styles in terms of comfort.The results showed that heavy braking, cornering forces, longitudinal jerks and uneven speedmean a lot to passengers' valuation. The results from these experiments show that in all thesedriving styles give rise to significant decreases of the perceived comfort.Correlation and regression analysis was then used to develop indicators for quantitativeanalysis of travel with public transport. The four indicators that were produced essentiallyreveal the sensitivity for; 1) longitudinal acceleration and braking, 2) longitudinal jerks, 3)cornering forces, and 4) uneven speed, so-called "Pump driving". Further, these indicators were used to assess some hundred measurement runs with accelerometers in both buses andmetro cars in normal service.

MEET US


8-9
Oct

Social sustainability and just mobility

Welcome to a research workshop on Social sustainability and just mobility, 8–9 October 2019 in Linköping, Sweden
16-18
Oct

European Road Profile User's Group, ERPUG

Welcome to the sixth ERPUG meeting in Vilnius, Lithuania. 
4-5
Dec

Vision Zero for Sustainable Road Safety in the Baltic Sea Region

The second Vision Zero for Sustainable Road Safety in the Baltic Sea Region conference will be held in Tallinn, Estonia. VTI is part of the programme committee. 

LATEST NEWS


2019-08-19

A driving licence withdrawal can have major consequences in everyday life

A withdrawn driving licence can have negative consequences for a person’s ability to shape their own life. A study from VTI investigates how individuals with visual field loss have been affected by no longer being permitted to drive.


2019-08-13

Measuring sleepiness – a challenge for researchers

Driver fatigue has been a research area at VTI for several years, and the researchers have studied various aspects such as the working hours of professional drivers, driver behaviour, accident risks, and the design of warning systems. They are now moving...


2019-05-09

Knowledge in the fight against microplastics from road traffic

The Government has commissioned VTI to develop and disseminate knowledge regarding the emission of microplastics from road traffic.


2019-05-07

How to make autonomous vehicles coexist with other traffic

The road infrastructure must be prepared for self-driving vehicles – especially in the beginning when the concepts are still new. Researchers are contributing to this through CoEXist, an EU-funded research project in which VTI participates as the largest...


2019-05-03

Electric roads: ‘Standardisation is an important factor for a future European transport system’

VTI employees recently arranged a workshop in Brussels on the standardisation of Electric Road Systems (ERS). ERS has become increasingly relevant as a possible method for reducing the transport sector's environmental impacts, especially in terms of climate...


2019-04-23

Research on passenger and freight transport research

Shift2Rail is a European railway project that works actively to create innovations within the railway sector. IMPACT-2 is a project within Shift2Rail that follows and evaluates the innovation projects. How are the innovations coming along? Are they beneficial...