Estimating interaction delay in bicycle traffic from point measurements


Planning for bicycle traffic is getting increasingly popular in cities, often motivated by that it is beneficial for the environment and the public health, and that it is a space efficient mode of transport. However, research on bicycle traffic has traditionally focused mainly on safety and mode choice, and less on traffic engineering topics such as investigating travel times, delays, and capacities. This study contributes to filling this gap by presenting a general method to estimate a volume -- delay function for bicycle traffic based on point measurements of passage time, speed, and lateral position, and, using estimates of the value of time in bicycle traffic, estimating the marginal cost of the interaction delay.

The proposed method is based on an established method to estimate the distribution of desired speeds, and extends this to estimate the delay of the observed cyclists. The method is demonstrated using a data set from a bridge in Stockholm, Sweden, showing that there is significant interaction delay and associated cost even for relatively modest volumes, implying that interaction delay and its cost should be considered when planning for bicycle traffic.



ICTTP 2020

ICTTP, International Conference on Traffic and Transport Psychology, is held in Gothenburg, Sweden.



Report regarding government commission on the costs of traffic to society has been submitted

Since 2013, the Swedish National Road and Transport Research Institute (VTI) has had several government commissions to produce documentation on the costs to society caused by traffic. On 1 November 2018, the agency reported its latest commission, Samkost 3....


International standardisation efforts have many advantages

VTI participates in several international standardisation committees. The work is important because it helps to ensure that standards can be adapted to Swedish conditions and it also provides access to valuable contacts and networks.


China wants to work with the best

Through the CTS cooperation, VTI is gaining valuable research contacts with China. The country is facing major challenges in the field of road safety but also has enormous potential.


VTI participated in conference on electric roads

Systems with electrified roads are a relatively new concept and many projects have been launched in recent years. To stimulate the transfer of knowledge and collaboration, the Research and Innovation Platform for Electric Roads arranged its second...


ADAS&ME is tackling the interaction between people and technology

ADAS&ME is a major EU project focused on automation, the human condition and the human environment. The budget is EUR 9.6 million and VTI is the coordinator.


Users contribute to the development of train simulators

Apart from advanced driving simulators, VTI has developed several variations of train simulators which are used for training, education and research. In recent years, interest has increased drastically among major actors in the railway sector, and VTI has...