An assessment on the effectiveness of traffic calming markings and alternative for speed regulating strips

Download
Joshua Ng Yew Wei
Seng Tim Ho
Chandrasekar S/O Palanisamy

The objective of this study is to evaluate the effectiveness of placing Traffic Calming Markings(TrCM) at different locations along the road to influence motorists’ speed, and provide an alternative to replace existing speed regulating strips on our roads. The study tested on 11 TrCM locations and the 85th percentile speed results showed that eight out of the 11 locations showed a reduction in speed while two locations have become ineffective and one location showed no change in speed. The results also indicated that TrCM was more effective when combined with other natural features such as a crest, a gentle bend or presence of a narrowing effect. However, it was less effective when applied along neutral road gradients and down slopes.

With this in mind, further tests were carried out to compare the effectiveness of TrCM before and along a bend. Concurrently, similar arrangement was also carried out to determine the speed for Speed Regulating Strips (SRS) before and along a bend as a means to compare the effectiveness between the two traffic calming measures. Thereafter, the findings on both of these speed tests would ascertain the appropriate locations to provide TrCM to reduce motorists’ speed and an option to replace SRS if necessary.

MEET US


7
Dec

Shipping and the environment – research meets reality

Centre for Transport Studies (CTS) in co-operation with Ports of Stockholm invite you to the seminar Shipping and the environment – research meets reality.

LATEST NEWS


2017-10-26

Simulation of cut-in by manually driven vehicles in platooning scenarios

A study in a VTI-driving simulator has showed that a platoon will be able to handle a cut in from a manually driven car. The results of this study have recently been presented at two conferences in Japan.


2017-10-16

ERPUG Forum

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.


2017-09-29

Self-driving buses in Sweden next year?

A self-driving, fossil-free bus. This idea might become reality through a forthcoming collaborative project involving the Swedish National Road and Transport Research Institute (VTI), Linköping University and several other participants. The project group aim...


2017-09-29

New climate-proof solutions for hard surfaces in cities

High-density road infrastructure that emphasise maximum durability and minimum maintenance create inflexible systems, which put increased stress on urban trees and lead to increased risk for flooding. Over the past five years, the ‘Climate-proof solutions for...


2017-09-29

VTI is preparing for automated vehicles

Automation of traffic systems will lead to major changes. The European Union’s (EU) CoEXist research project began in June 2017 with the aim of preparing cities and road operators for the introduction of self-driving vehicles. The Swedish National Road and...


2017-07-05

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...