Integrated Drainage Curb Elements for Bus Stop Water Management
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Solution Overview
Problem
Existing bus stop curb systems suffer from water accumulation and puddle formation, which poses safety risks due to splash hazards and slippery conditions, especially in cold weather, making it difficult for buses to drive into the stop precisely and safely.
Innovation Solution
A curb element system comprising elongated, cuboid-shaped stones with integral channel or tube-like cavities connected to form a continuous drainage channel, allowing rainwater to be discharged directly into the sewer system, preventing water accumulation and puddle formation at the bus stop.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If curb elements are designed with drainage channels to prevent water accumulation, then water discharge capability is improved, but device complexity increases
Solution Approach 1:
The drainage channel is integrated directly into the curb element body, merging the drainage function with the structural curb element. This eliminates the need for separate drainage components and reduces overall system complexity while maintaining effective water discharge capability.
Solution Approach 2:
The curb element serves multiple functions simultaneously: it acts as a structural boundary element, a drainage component, and a water discharge channel. This multi-functionality reduces the number of separate components needed and simplifies the overall system while improving water management.
2Reliability
If gradients are created to divert water away from passenger areas, then water diversion capability is improved, but safety risks increase due to splash hazards and slippery conditions
Solution Approach 1:
Instead of diverting water away from the bus stop area, the system collects and channels water through integrated drainage channels into the roadway drainage system. This converts the harmful effect of water accumulation into a controlled drainage process, eliminating splash hazards and slippery conditions while maintaining water diversion capability.
3Manufacturing precision
If curb elements are designed to guide buses safely to the stop with self-steering effect, then bus alignment is improved, but water accumulation in the approach surface worsens
Solution Approach 1:
The approach surface is segmented into multiple sections with integrated drainage channels in each segment. This segmentation allows water to be discharged at multiple locations along the approach surface, preventing accumulation while maintaining the self-steering geometric design for bus alignment.
Solution Approach 2:
The drainage function is added as a third dimension to the curb element design, with vertical drainage channels integrated into the cross-section. This allows water to be discharged vertically through the curb element structure without affecting the horizontal geometry that provides bus alignment guidance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively prevents water accumulation and puddle formation, enhancing safety by reducing aquaplaning risks, improving bus alignment with the curb, and minimizing ice formation in winter, thus ensuring safer bus operations and passenger protection from spray.
Implementation Method 1
each consisting of at least one elongated, approximately cuboid shaped stone... with an integral channel or tube-like cavity... connected to form a continuous channel channel forming a drainage channel
Data Source
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AI summary
Curb element system (20) for a bus stop, comprising several curb elements (1, 1a, 1b, 1b') of different designs and arranged one behind the other, each consisting of at least one elongated, approximately cuboid-shaped shaped stone, wherein the curb elements (1, 1a, 1b) form a boundary of a raised sidewalk area (G) of the bus stop opposite a roadway (F), wherein the curb element system (20) has at least a first and second transition section (22, 22') and a central main section (21) arranged between the transition sections (22, 22'), wherein at least the curb elements (1) arranged in the central main section (21) are designed as bus curb elements and form a driving surface (6) with a first upper surface section of their upper surface (2) and a step-like raised second upper surface section of their upper surface (2) with a step-like raised second upper surface section (7), wherein an upper front surface section (4.1) The kerb elements are set back relative to a lower front section (4.2) towards a rear side (5) and have a sloping surface that recedes from bottom to top. In each of the kerb elements (1, 1a, 1b) of the kerb element system (20), an integral channel- or tube-like cavity (10) with at least one inlet opening (11) opening outwards at the top (2) is formed, and each kerb element (1, 1a, 1b) forms a monolithic channel body, wherein the channel- or tube-like cavities (10) of the kerb elements (1, 1a, 1b, 1b') in the kerb element system (20) are connected to form a continuous channel (10a) forming a drainage channel.