Motorcyklisters hastigheter - nivåer och förändringar i samband med nya hastighetsgränser

Mohammad Reza Yahya

The sub-target that 80 per cent of all road users should drive within current speed limits was introduced in order to reach the national traffic safety target of a maximum of 220 traffic fatalities by 2020. The target applies to passenger cars, heavy goods vehicles, motorcycles and mopeds alike. The aim of this study is to improve the knowledge regarding the speed of motorcyclists on different kinds of roads incorporating recently introduced speed limits, and to evaluate any changes in speed in connection to the new speed limits. The evaluation was performed by utilising available speed data on rural roads obtained from measurements in connection with the national evaluation of new speed limits. Results from speed measurements show an increase of approximately 3 km/h in the motorcyclists' travel speed on motorways when speed limits increased by 10 km/h on roads previously holding a speed limit of 110 km/h, or on 2+1 roads (a continuous three-lane road with alternating passing lanes and the two directions of travel separated by a median barrier) with a previous speed limit of 90 km/h. Both changes are significant. The degree of the change is similar to previous estimates for passenger cars.The changes are not significant on 2+1 roads and 2-lane rural roads where speed limits were reduced from 110 km/h to 100 km/h. Motorcyclists reduced their speed by 2–3 km/h at four studied assessment points at 2-lane rural roads incorporating a reduced speed limit from 90 to 80 km/h. With regards to speed limit compliance, it is apparent that the percentage of speed violations in general increases by approximately 20 percentage points when speed limits were reduced by 10 km/h to 100 km/h on 2+1 roads and 2-lane rural roads. Correspondingly, the effect of increasing speed limits by 10 km/h is that the percentage of speed violations has been reduced by 14.4 percentage points on motorways that has got increased limit from 110 to 120 km/h and on 2+1 roads with increased limit from 90 to 100 km/h. On examining the level of speed violations by motorcyclists, it becomes evident that 48.3 percent of motorcyclists exceed current speed limits on motorways holding a speed limit of 120 km/h. The equivalent figure for motorcyclists on 2+1 roads and 2-lane rural roads with a reduced speed limit to 100 km/h is 57.4 and 50.6 percent, whilst the level for 2+1 roads where the speed limit has been increased to 100 km/h shows that 45.8 percent of motorcyclists exceed current speed limits. Common to all the studied road types is that the proportion of traffic volume exceeding the current speed limit by 30 km/h or more is approximately 5 per cent on all the different kinds of roads studied.



ERPUG 2017

The five year anniversary of  European Road Profile Users' Group (ERPUG) Forum will take place at Ramboll head quarter, Copenhagen, Denmark October 19-20, 2017. 



Vehicle Driver Monitoring: sleepiness and cognitive load

To prevent road crashes it is important to understand driver related contributing factors, which have been suggested to be the critical reason in 94 per cent of crashes. The overall aim of the project Vehicle Driver Monitoring has been to advance the...


Tomas Svensson new director-general

Tomas Svensson was today appointed Director-General of VTI. Tomas has been acting Director-General since January 2017. 


Crash testing bicycles at VTI

For the first time single bicycle crashes have been simulated at the VTI crash safety laboratory.


A case study exploring firefighters’ and municipal officials’ preparedness for electrical vehicles

A VTI-study presents a social perspective on new vehicle technology. It explores the self-reported preparedness of the fire departments (i.e., rescue services) in Sweden’s three largest cities regarding rescue operations involving electrical vehicles (EVs).


Pioneering research on and about bicycles at VTI

Under what circumstances might cyclists lose tyre grip? What actions could then be taken to prevent a crash? VTI is currently developing a theoretical model of the behaviour of bicycle tyres during braking and steering in different situations and on different...


Virtual pedestrians create efficient stations

If more people are to choose sustainable travel, then the public transport stations of the future must be designed so that pedestrians can get where they are going quickly, without congestion or queues. The Swedish Road and Transport Research Institute (VTI)...