Controlling the speed of vehicles is essential in some parts of the roadway. One way of controlling speed is to use static control devices i.e. traffic calming measures, which reduce the speeds of vehicles and thereby increase safety, while produce discomfort when crossing over it. In this study, three types of traffic calming measures located in Mosul city are investigated: flat-topped hump, single bump, and double bump. A data related to the driver’s behaviour, such as driving speed at different locations from the device, vehicle headways, travel times, and delays are obtained. The data are collected using video camera and speed radar gun instruments. Thirteen traffic calming measure locations on arterial roads were selected. The speed reduction at calming devices are 71.6%, 66%, and 60% for flat-topped humps, double bumps, and single bumps respectively. The acceleration value ranges from 0.424 to 1.107 m/sec², while for deceleration from 0.039 to 1.042 m/sec². The highest acceleration and deceleration values are at flat-topped hump and double bump respectively. The arrival rates of the traffic platoons before calming location follows the Poisson Distribution for both single and double bumps, while in the case of flat-topped humps the Binomial Distribution shows to be the best one followed. Departure rate headways after crossing follows a continuous Exponential Distribution. Rate distributions are validated by Chi-square and Kolmogorov-Smirnov non-parametric statistical tests for final validation, and models are correlated with high coefficient of determination values. Acceleration noise as a powerful speed change measuring parameter is selected to be measured along the test sections was studied and found that the higher value is for flat-topped hump. The highest delays from travel time measured on both up and downstream locations are for the double speed bump.

在道路的某些部分，控制车辆的速度至关重要。一种控制速度的方法是使用静态控制设备，即交通管制措施，该措施会降低车辆的速度，从而提高安全性，同时在通过时会产生不适感。在这项研究中，调查了位于摩苏尔市的三种交通缓解措施：平顶驼峰，单颠簸和双颠簸。获得与驾驶员行为有关的数据，例如从设备在不同位置的行驶速度，车辆行驶距离，行驶时间和延迟。数据是使用摄像机和测速雷达测速仪收集的。选择了13条主干道上的交通缓解措施位置。对于平顶驼峰，双颠簸，镇定器的速度降低分别为71.6％，66％和60％，和单个颠簸。加速度值范围从0.424到1.107 m / sec²，而从0.039减速到1.042 m / sec ²。最高的加速度和减速度分别是在平顶驼峰和双颠簸处。在单向和双颠簸时，交通排在平稳位置之前的到达率均遵循泊松分布，而在平顶驼峰的情况下，二项分布显示是最佳的。穿越后的离开速度一直保持连续的指数分布。速率分布通过卡方检验和Kolmogorov-Smirnov非参数统计检验进行验证，以进行最终验证，并且模型与确定系数高的值相关。研究了将加速度噪声作为有力的变速测量参数，以便沿着测试部分进行测量，结果发现，较高的值适用于平顶驼峰。