How can you optimize traffic signals for public transportation, like buses and light rail?

TSP or Transit Signal Priority is a key to maintain on time performance in the congested downtown of cities. Making the lights stay green a little longer so your bus can get through or turn green quicker so your bus moves ahead are important ways to prioritize passengers on public transportation. When people see that riding the bus helps them get to their destination quicker than riding in their own car - we’ll get them back on the bus 🚍

In general, having well timed signals is a benefit to public transit. Layering signal priority on top of well timed signals further provides additional travel time and reliability benefits for public transit. This is especially true if the public transit travel direction is parallel to the major traffic flows. If the major traffic flow crosses the direction of public transit, decisions are needed regarding how to minimize delays to public transit, maintaining the flow of traffic and what to prioritize. Other factors are providing exclusive right of way for public transit and maintenance of traffic signal control equipment and systems.

Bus Priority in junction signals as well as in lane by providing a separate lane for bus is necessary for effective implementation. 🚍🚦

There needs to be more information on the vehicle side of it, for example is my whole fleet working correctly or do I have 1/3 of my fleet not working? We tend to concentrate on intersections and not on fleet and transit efficiency.

Public transit holds the highest public benefit when it is widely used. Signal optimization boosts it's rideshare by making transit options more reliable, reducing headways, and sets the stage for further improvements like priority bus lanes.

Bloodstream is often cited for proper and efficient, "fluid" circulation, when it comes to automobile congestion. Nothing is further from the truth. Bloodcells enjoy an ideal motion for 2 reasons: - they collide elastically all the time, sharing about presence, pressure, free ways etc. - in a liquid, {traffic information}=pressure propagates way faster than cells, and IS the efficiency driver. "Local information" is called a thrombus, and leads to collapse. Automobiles are inherently prone to congestion, with information slower than mobiles, and asynchronous, untimed flow. Traffic signals are but an attempt to locally forget these basics. This is why CarLina is city-wide synchronous in a separate site: simple,efficient at very low cost.

Addressing and optimising traffic signals for varying passenger loads throughout the day and week will pose a significant challenge. Coordinating with the transit system schedule will also be a complex task. The increased use of sustainable transport modes such as cycling, walking, and E-bikes will further add challenges to achieving seamless intermodal connectivity at junctions.

Es imperativo tener en cuenta que la tecnología es un componente vital que ha estado ausente en este tipo de mejora, la aplicación correcta de la gama de colores, la utilización de sensores, y las decisiones basadas en algoritmos matemáticos es un recurso del que se debe echar mano con generosidad.

Eine tolle möglichkeit was es auch noch gibt wäre ein Timer wie man es von Baustellenampeln kennt zusätzlich einzusetzen bei Ampeln wo eine längere rot phase unvermeidbar ist - so weiß jeder wie lange die Ampel noch Rot sein wird und dementsprechend motiviert es mehr den Motor währenddessen zu stoppen

- Increase of travelers level of satisfaction, through surveys - Decrease of the average delay per person at the intersection - Decrease of transit travel time - Mode shift to transit and decrease of road congestion

Evaluating the percentage of trips or buses that adhere to their schedule, considering signal-related delays, along with measuring the time spent by public transport vehicles at signals, can provide a better perspective on the performance of any traffic signals system.

Micro level metrics are fine, however macro level impacts should be a consideration. States like California moving away from LOS means projects are measured more truly at a global level. Impacts should be measured with vulnerable road users in mind.

Nuevamente la tecnología se une a esta propuesta de mejora, ya que podemos usar los mismos modelos expuestos, pero con el añadido de interactuar en tiempo real con los usuarios, podemos medir efectividad con satisfacción.

Die Einfachste lösung wäre eine Kamera die den Fahrzeugstrom erfasst und man im Anschluss alles Vergleicht , man muss eventuell wenn man hier sozusagen die Ampel neu erfinden möchte zeit und Versuche investieren um den richtigen weg und die richtigen Einstellungen zu finden aber dennoch eine der einfachsten Lösungen - die meisten hotspots sind bekannt und somit könnte man gezielt zuerst auf diese gehen.

When “optimising” traffic signals; it is really important to understand what you’re trying optimise for. Reliability is important for transit users and safety is absolutely paramount for vulnerable users such as pedestrians.

Creo que el secreto esta en la visibilidad de la señal a la distancia y la comunicación con el usuario, si un usuario no ve el cambio de luz tardara en reaccionar, pero si la ve y la "oye" puede reducir los tiempos de puesta en marcha.

Integrating all the elements of public transport is essential - for example, coordinating stop locations with on-road priority measures and ease of access (eg crossing the road) addresses all of the customer experience

My opinion is that, instead of optimizing only traffic signals we should focus on even optimizing or redirect traffic flow using a road network which could maintain/distribute traffic flow. In short, this can be achieved through rider who uses smart navigation applications which can help them to choose between an optimized route. Now a day we can use AI for both options.

By implementing dedicated bus lanes, signal preemption for transit vehicles, and synchronized signal timing can help reduce delays and improve overall transit flow. Advanced technologies, such as real-time traffic monitoring and adaptive signal control systems, can further enhance optimization by adjusting signals based on current traffic conditions.

One strategy is to place Traffic signals at two points on the same road. Like it would be the distance of 100 m. In this way traffic becomes alert of the Signal before they reach the main signal at the junction. Another strategy is to make alternative routes and distribute vehicles according to their trip, vehicle type, etc. In this way traffic signals would be optimized.

Traffic lights in my area are programmed to change on a combination of in-road sensors and basic expectation timings. This can be really inefficient and vehicles are often left waiting at intersections where there are no pedestrians or other vehicles, or large numbers of vehicles are stopped after a small gap for a single vehicle travelling in an adjacent lane. Cameras/LiDAR, AI, ML, and networking between close/linked intersections would be a game-changer. Greatest volume throughput could be maximised, light changes could be made faster, public transport could be prioritised. Additionally, there would be a cost reduction from not needing in-road sensors and revenue could be generated by issuing fines for captured traffic infringements.

There will always be variability so bespoke real time customer information is critical to get the best response to all the other investment - customers can then confidently make best use of the public transport service

Das trifft den Kern der Sache genau und zeigt auf wie viel verschiedene Aspekte und Interessengruppen beteiligt sind und berücksichtigt werden müssen. Testkreuzungen und diverse Straßenabschnitte könnten hier Daten liefern um das Projekt voranzutreiben.

Best practices for optimizing traffic signals for public transportation requires: * Cooperation between all involved stakeholders * Open Source tools and methodologies including cloud processing, machine learning, and other advanced techniques * Breaking down silos to encourage inter- and intra-agency cooperation and technology awareness. Transit technology is at the beginning of a new era interfacing with traffic and infrastructure. Turner Engineering is strongly positioned to take advantage of these technologies to optimize transit flow.

For Bus Priority, it is important to manage kerb side parking so that the bus can easily reach the signal stop line. This is especially relevant in non-peak periods such as business hours.

Before adding any form of vehicle specific priority at traffic signal Junctions, ensure the current equipment / system is working correctly and is operating to its most efficient. Once this is confirmed a true assessment can then be carried to understand what, if anything, is needed to give priority or if priority is actually needed.

Mejorar la señalización de actividades críticas como el transporte de mercancías peligrosas, usando por ejemplo un pictograma dedicado a la distancia de aislamiento de una zona en caso de emergencia; comunicación que he propuesto y hasta ahora no se implementa.

it is not necessary to prioritize PT just at intersections, it is necessary to do optimization in zones. of course, the zones must communicate with each other in order to obtain the optimum of defined KIP

A política de TP não se faz unicamente olhando para seu próprio sistema. Ela precisa de diversas ações que podem ser vidas do desenvolvimento econômico com alterações no uso das vias e uso e ocupação do solo, ações da cultura com promoções características para incentivo ao uso do TP, na politica educacional com a introdução de maiores conhecimentos do que é a cidade, seu comportamento, uso e cidadania. campanhas da saúde mostrando a poluição do excesso de veículos em relação a poluição e seus impactos na saúde das pessoas, por exemplo.