那时的北京是一个灰色、乏味、设施简陋的城市，主要交通工具是自行车。
Then Beijing was a gray, drab, one-horse town where the main means of transportation was the bicycle.
中国的交通法规滞后于技术进步，打车应用在中国是一个法律上的灰色地带。
Car-hailing apps are a legal grey area in China as transport laws have lagged behind technological advances.
交通停滞、空气污染、马路拥挤、无休无止的灰色人行道。是不是听着耳熟?。
Stand-still traffic, air pollution, crowded streets, endless gray sidewalks. Sound familiar?
一辆灰色的汽车离开了对面的路边，加入到城市交通拥堵的车流里。
A gray car was pulling away from the opposite curb to join the steam of traffic bound for the city.
过去，北京是一个灰色、乏味、设施简陋的城市，主要交通工具是自行车。
In the past Beijing was a gray, drab, one-horse town where the main means of transportation was biking.
分析城市交通环境空气影响因素，设计一套评价指标体系，并建立了环境大气质量评价的灰色决策模型。
Elements which influence the urban traffic air, we design a index system and construct the grey decision model to assess the Quality of the air.
本文将灰色系统理论应用于交通冲突数的预测，建立了交通冲突数的GM(1,1)预测模型，并通过相关检验验证了该方法的可行性。
A grey prediction model GM (1, 1) using grey system theory was created to predict the traffic conflicts. Its feasibility was tested by some related tests.
对灰色理论在交通安全评价领域应用的可行性进行探讨。
The possibility of applying grey theories in traffic safety field was discussed in this paper.
在综合分析国内外道路交通安全评价方法的基础上，建立了城市道路交通安全的灰色评价方法。
Based on the general analysis of evaluation methods both at home and abroad, the gray evaluation method of urban road traffic safety is established.
本课题的研究在数学模型的建立上比较注意数学方法的选择，把灰色系统理论较好地应用到船舶交通安全评估的研究中。
This dissertation compares some math methods and chooses the Grey System Theory as a tool to evaluate the vessel traffic safety, which achieves a satisfactory result.
为此以河谷型大城市兰州市为例，利用灰色关联度模型对1990 ~ 2002年间交通消费结构变动所产生的环境效应作了定量分析。
Taking Lanzhou, a valley city, as a case, a quantitative analyse has been made to the environment effect of traffic consumption structure changing from 1990 to 2002 by using grey correlation model.
运用灰色预测理论，对宁夏未来几年的交通事故形势作了预测；
By use of the Grey Model theory, this paper forecasts NingXia' s traffic accident trend in the following five years.
采用传统灰色GM(1,1)模型预测道路交通事故这类随机性、波动性较大的数据，存在拟合较差、精度不足等问题。
Random and volatile data of road traffic accidents show poor fitness and low accuracy if forecast by means of the traditional grey model GM (1, 1).
城镇主要道路评价采用交通致死率、运行事故率、亿车公里死亡率三个指标结合灰色聚类分析方法进行评价。
Combining cluster analysis of gray theory we make an evaluation on the line with three evaluation indexes: the road traffic fatality rate, run-accident rate, Million-vehicle- mortality per km.
针对道路交通事故的预测问题，以灰色预测模型为基础，建立残差灰色预测模型对交通事故进行预测。
In terms of road traffic accident forecast, residual error gray forecast model has been established to forecast road traffic accident on the basis of gray forecast model.
通过实验研究，发现基于灰色关联度的层次化聚类方法能较好地实现交通流时间序列的进一步有效分离。
The experiments show that the proposed method can work and the gray relation grade measure is better suited for the problem than the dynamic time warping measure.
全国或某一地区的道路交通安全系统是一个灰色系统，可应用灰色关联分析法方便地确定影响交通安全的主要相关因素。
The road traffic safety system of the whole nation or a region is a grey system, which could be used to easily ascertain the correlated factors of road traffic accidents.
那时这个城市是一个灰色、乏味、设施简陋的城市，主要交通工具是自行车。
The city was a gray, drab, one-horse town where the main means of transportation was the bicycle.
根据道路交通安全性评价的灰色特点，介绍灰色关联度评价方法。
This thesis introduces the grey relational grade evaluation method according to the grey characters of road traffic safety evaluation.
通过分析道路交通事故发生的特点，从不同的角度，建立了模糊图模型、非线性回归模型及基于灰色理论的灰色预测模型。
The predictive models of fuzzy graph, nonlinear regression and with grey theory are set up from different aspects by analyzing the features of road traffic accidents.
介绍了交通安全的研究方法和预测模型，并对统计分析、模糊数学分析及灰色理论方法进行了比较。
Study method and predicting models for traffic safety are introduced. Comparisons on statistical analysis, fuzzy mathematical analysis and method of gray theory are made.
通过分析短时交通流时序特性，将灰色系统理论应用于短时交通流预测，建立了滚动GM(1,1)预测模型。
By analyzing short time traffic flow time sequence property, the gray system theory is used for short time traffic flow prediction and the scrolling GM (1, 1) prediction model is set up.
应用灰色系统理论和宏观、微观经济学原理，以及系统工程的理论和方法，进行了城际交通运输需求分析。
The transport demand among the cities have been analysed by using the gray system theory, macroscopic and microcosmic economics principles and system engineering theory.
针对公路交通系统在准确预测交通运量时的棘手问题，引进灰色预测GM(1,1)模型进行预测。
Aiming at solving the demanding problem of road traffic system in exactly forecasting the traffic freight volume, an introduction is made into the Grey Model GM (1, 1) for forecasting.
灰色GM(1,1)是一种水上交通事故量预测模型。
Grey GM (1, 1) is a model for forecasting maritime accident quantity.
回归分析法、灰色系统模型法和指数平滑法是目前常用的水上交通事故预测方法。
Regression analysis, grey-system and exponential smoothing method are in common use as forecasting methods of maritime accidents nowadays.
将层次兮析法——墒定权的灰色关联分析方法用于轨道交通线网方案的评价，可行且有效。
The analytic hierarchy process & entropy weight gray analysis combined method is presented to evaluate the rail planning network, which is feasible and effective.
在交通量预测中，社会经济指标数据是最基础的预测数据，研究了灰色预测模型在社会经济预测中的应用方法。
In the forecast of traffic volume, the data of, social economic is the most important predicting data. It discusses the application of grey model in the prediction of social economic.
本文以交通冲突技术、模糊数学、灰色理论等为工具，对城市信号控制环形交叉口的交通安全进行评价分析。
The traffic safety of the urban signalized roundabout along with traffic conflict technique, fuzzy mathematics and gray theory has been evaluated in this paper.
本文以交通冲突技术、模糊数学、灰色理论等为工具，对城市信号控制环形交叉口的交通安全进行评价分析。
The traffic safety of the urban signalized roundabout along with traffic conflict technique, fuzzy mathematics and gray theory has been evaluated in this paper.
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