69 research outputs found

    ИспользованиС ΠΌΠΈΠΊΡ€ΠΎΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»Π»Π΅Ρ€Π° ESP32 совмСстно с Π³ΠΈΡ€ΠΎΠΏΡ€ΠΈΠ±ΠΎΡ€Π°ΠΌΠΈ MPU-6050 ΠΈ BNO055 ΠΏΡ€ΠΈ создании ΡΠ°ΠΌΠΎΠ±Π°Π»Π°Π½ΡΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ… Ρ€ΠΎΠ±ΠΎΡ‚ΠΎΠ²

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    Π‘Ρ‚Π°Ρ‚ΡŒΡ посвящСна Π°Π½Π°Π»ΠΈΠ·Ρƒ возмоТностСй элСктронных ΠΏΡ€ΠΈΠ±ΠΎΡ€ΠΎΠ², Ρ‚Π°ΠΊΠΈΡ… ΠΊΠ°ΠΊ гироскоп, аксСлСромСтр, ΠΌΠ°Π³Π½ΠΈΡ‚ΠΎΠΌΠ΅Ρ‚Ρ€. ΠŸΡ€ΠΈΠ²ΠΎΠ΄ΡΡ‚ΡΡ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ тСстирования ΠΈ Π΄Π΅ΠΉΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΠ΅ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΡ‹. ΠΠ½Π°Π»ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‚ΡΡ возмоТности ΠΈΡ… примСнСния Π² Ρ€Π°Π·Π½Ρ‹Ρ… Π²Π°Ρ€ΠΈΠ°Π½Ρ‚Π°Ρ… расчСтов. Π”Π΅Π»Π°ΡŽΡ‚ΡΡ Π²Ρ‹Π²ΠΎΠ΄Ρ‹ ΠΏΠΎ Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΡŽ возмоТностСй ΠΈ ΡƒΡΡ‚Ρ€Π°Π½Π΅Π½ΠΈΡŽ нСдостатков ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½ΠΎΠΉ комплСксной систСмы позиционирования Ρ€ΠΎΠ±ΠΎΡ‚Π°

    An empirical test for cellular automaton models of traffic flow

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    Based on a detailed microscopic test scenario motivated by recent empirical studies of single-vehicle data, several cellular automaton models for traffic flow are compared. We find three levels of agreement with the empirical data: 1) models that do not reproduce even qualitatively the most important empirical observations, 2) models that are on a macroscopic level in reasonable agreement with the empirics, and 3) models that reproduce the empirical data on a microscopic level as well. Our results are not only relevant for applications, but also shed new light on the relevant interactions in traffic flow.Comment: 28 pages, 36 figures, accepted for publication in PR

    Cellular automata approach to three-phase traffic theory

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    The cellular automata (CA) approach to traffic modeling is extended to allow for spatially homogeneous steady state solutions that cover a two dimensional region in the flow-density plane. Hence these models fulfill a basic postulate of a three-phase traffic theory proposed by Kerner. This is achieved by a synchronization distance, within which a vehicle always tries to adjust its speed to the one of the vehicle in front. In the CA models presented, the modelling of the free and safe speeds, the slow-to-start rules as well as some contributions to noise are based on the ideas of the Nagel-Schreckenberg type modelling. It is shown that the proposed CA models can be very transparent and still reproduce the two main types of congested patterns (the general pattern and the synchronized flow pattern) as well as their dependence on the flows near an on-ramp, in qualitative agreement with the recently developed continuum version of the three-phase traffic theory [B. S. Kerner and S. L. Klenov. 2002. J. Phys. A: Math. Gen. 35, L31]. These features are qualitatively different than in previously considered CA traffic models. The probability of the breakdown phenomenon (i.e., of the phase transition from free flow to synchronized flow) as function of the flow rate to the on-ramp and of the flow rate on the road upstream of the on-ramp is investigated. The capacity drops at the on-ramp which occur due to the formation of different congested patterns are calculated.Comment: 55 pages, 24 figure

    Basis of the Swiss Design Standard for Roundabouts

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    Estimating Performance on Two-Lane Highways

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