For a vehicle to interact in traffic, except it needs to be technically correct, it must be registered and it must have a valid traffic licence. Every vehicle before registration needs to approach technical review which determines vehicle correctness, and if every year and device meet the required standards. Registration is done by official police station due to place of residence or residence of car owner. It has an expiration date of one year and needs to be renewed on a year basis. Extension of registration of a personal car is done in a technical inspection station. Timeline is an aggregate of chronologically arranged variable values which presents an appearance or a statistical process in time. Values it is formed by are called line members. Interval line differs from current timeline. Indices of a timeline are divided into individual and overall. Individual indices include chain and base indices. If we keep track of dynamics of just one appearance using index numbers, in which is one of the observed periods the base of comparison, then we talk about base indices. Chain indices follow a change of state of an appearance in consecutive periods. During the chain index calculation, observed values of some appearances are placed according to ratio of a value from the past period. The arithmetical matrix is determined by adding up the values of numerical variables and they are divided by their number. The variance is an arithmetical matrix of squared deviation value of a numerical variable from her arithmetical matrix. Standard deviation is interpreted as average deviation of a numerical variable value from her arithmetical matrix. The variable of coefficient is that average deviation expressed in percentage