8 results about "Urban main road" patented technology

1. Name of the design product: Solar floodlight. 2. Use of the design product: For lighting urban main roads, secondary roads, industrial parks, tourist attractions, and outdoor large parking lots. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Front view.

Navigation system (1) for a motor vehicle (10), wherein the navigation system (1) is designed to: - to provide an activatable navigation mode for navigating the motor vehicle (10) within an urban area (S1); - to determine a route within the city area (S2) in activated navigation mode, avoiding route sections outside of the city's main roads; and - to control (S3) an output device (2) of the motor vehicle (10) to suggest a specific route in the activated navigation mode; characterized in that - the route sections to be avoided include roads along schools and / or kindergartens within specified time windows.

1. Name of the design product: Smart street lamp (Spring Bud). 2. Use of the design product: For landscape smart street lamp lighting, applicable to the construction of different urban main roads, secondary roads, smart business districts, smart industrial parks, etc. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Perspective view.

The invention relates to the technical field of road materials, and particularly discloses low-temperature rubber composite modified asphalt and a preparation method thereof.The low-temperature rubber composite modified asphalt is prepared from, by weight, 90-110 parts of matrix asphalt, 20-35 parts of a core-shell structure composite modifier, 3-8 parts of an activating agent, 0.5-2 parts of dicumyl peroxide and 4-8 parts of a composite warm mixing agent; wherein the core-shell structure composite modifier is prepared from the following raw materials in parts by weight through banburying granulation: 90-110 parts of vulcanized rubber powder, 5-15 parts of olefin elastomer, 1-5 parts of an interface compatilizer and 2-8 parts of a softening plasticizer. The low-temperature rubber composite modified asphalt can be used for asphalt pavement engineering of high-grade highways, urban main roads, bridge deck pavement and heavy traffic road sections, and has the advantages of good high and low temperature performance and fatigue resistance.

The invention discloses an intelligent vehicle train special lane structure and a station entering and exiting method, belongs to the field of intelligent traffic, and aims to solve the problems that an intelligent vehicle train special lane in an existing road is unclear in isolation from a conventional road, station entering and exiting and signal lamp cooperation is insufficient (including that there is no multi-intersection area linkage during congestion, so that vehicle train waiting is too long) and there is no standardized scheme for a waiting area. The structure comprises an intelligent train special lane in the middle of a main road, special lane isolation belts on the two sides, special lane exits (just crossing intersections) and special lane entrances (far away from the just crossing intersections) on the isolation belts, optional conventional road isolation belts and universal waiting areas corresponding to bus stations, and a newly-added area signal control optimization module linkage crossing signal machine. According to the method, efficient entering and exiting of the train set are achieved through double-safety-phase and regional signal cooperation. The traffic safety and efficiency are improved, the transformation cost is low, and the method is adaptive to urban main roads.

The invention provides a road system for solving urban traffic jam, which belongs to the technical field of road traffic and comprises a transverse lane and a longitudinal lane, the transverse lane and the longitudinal lane intersect to form a cross-shaped road section, the longitudinal lane is divided into a north lane and a south lane along two sides of the cross-shaped road section, and the transverse lane is divided into a west lane and an east lane along two sides of the cross-shaped road section. The north lane, the south lane, the west lane and the east lane are all two-way traffic lanes, each two-way traffic lane comprises an entrance lane entering the cross-shaped road section and an exit lane leaving the cross-shaped road section, and the entrance lanes are connected to the exit lanes in the same direction through the cross-shaped road section; according to the scheme, based on existing road foundation transformation, large-scale excavation or closed construction is not needed, the engineering amount is small, the period is short, the cost is low, two-way two-lane and above standard urban main roads are compatible, good implementation and universality are achieved, and an economical, efficient and sustainable infrastructure solution is provided for relieving urban traffic congestion.

The invention discloses a preparation method of high-temperature-resistant asphalt concrete, belongs to the technical field of road engineering materials, and aims to solve the technical problems that existing asphalt concrete is easy to generate ruts and cracks and poor in stability in a high-temperature heavy-load environment. According to the method, the high-temperature-resistant and heavy-load-resistant asphalt concrete is prepared through four core links of accurately selecting high-temperature-resistant raw materials, optimizing aggregate gradation (adjusting the proportion of coarse aggregate to fine aggregate to mineral powder to construct a stable skeleton structure), controlling a fiber pretreatment and mixing process and optimizing paving and compacting parameters. The high-temperature dynamic stability of the prepared asphalt concrete is greater than or equal to 3000 times / mm, the low-temperature bending strain is greater than or equal to 2800mu epsilon, the residual stability is greater than or equal to 85%, high-temperature softening and heavy-load fatigue damage can be effectively resisted, the service life of a pavement is prolonged, and the asphalt concrete is particularly suitable for summer high-temperature areas such as south China and East China and expressways and urban main roads busy in freight transportation. And the method has remarkable engineering application value and economic benefit.