Taking the high road: Retrofitting amenity onto urban arterial roads

<p>Amenity values on urban arterial roads are fraught. This is largely due to the traditional traffic capacity versus amenity trade-off. This trade-off implies that high-capacity roads must be inherently deficient in amenity due to issues of air quality, noise nuisance and the physical barrier of streams of traffic. However, a more nuanced position – and one adopted by this thesis - is that arterial roads can be both busy thoroughfares and active, enjoyable destinations. This design-led research explores retrofitting amenity values onto existing arterial roads, creating new spaces and improving qualities of a system not originally constructed with amenity in mind. Cuba Street in Lower Hutt is a regionally significant connector intended for future densified development. In addition to the current link function, this road needs to become more attractive as a destination and address. Consideration at the urban scale encourages broad, strategic planning to support amenity holistically. This urban planning addresses topics like desirable densification, transit-oriented development, walkable centres and how these affect the arterial road condition. In moving from urban-scaled to architectural design, the detailed implementation of the greater policies is tested. Architecture is engaged to respond to the immediate arterial road conditions with spaces and surfaces, protective buffers and layers. In this way - with architectural refinement and a comprehensive, coherent strategy - traffic capacity and amenity can be brought into balance.</p>

Taking the high road: Retrofitting amenity onto urban arterial roads

<p>Amenity values on urban arterial roads are fraught. This is largely due to the traditional traffic capacity versus amenity trade-off. This trade-off implies that high-capacity roads must be inherently deficient in amenity due to issues of air quality, noise nuisance and the physical barrier of streams of traffic. However, a more nuanced position – and one adopted by this thesis - is that arterial roads can be both busy thoroughfares and active, enjoyable destinations. This design-led research explores retrofitting amenity values onto existing arterial roads, creating new spaces and improving qualities of a system not originally constructed with amenity in mind. Cuba Street in Lower Hutt is a regionally significant connector intended for future densified development. In addition to the current link function, this road needs to become more attractive as a destination and address. Consideration at the urban scale encourages broad, strategic planning to support amenity holistically. This urban planning addresses topics like desirable densification, transit-oriented development, walkable centres and how these affect the arterial road condition. In moving from urban-scaled to architectural design, the detailed implementation of the greater policies is tested. Architecture is engaged to respond to the immediate arterial road conditions with spaces and surfaces, protective buffers and layers. In this way - with architectural refinement and a comprehensive, coherent strategy - traffic capacity and amenity can be brought into balance.</p>

Modelling of Traffic Noise Along Urban Corridor: A Case Study of Amman

Noise became one of the main environmental indicators of the quality of urban life. The aim of this study was to develop a traffic noise model for an arterial road in Amman, the capital of Jordan, which was being subjected to a persistent increase in traffic and its related issues. The characteristics of the traffic and its relevant noise were analysed to develop a noise prediction model using an adaptive neuro-fuzzy inference system (ANFIS). A geographic information system (GIS) was then implemented to model the current noise along the arterial road. The results of ANFIS model showed that traffic delays and the percentage of heavy vehicles were the main causes of traffic noise generation within the urban area. However, the developed ANFIS model can simulate traffic noise with a relatively low root mean square error. Furthermore, this study will help to improve the perception about traffic noise and its development along arterial roads.

Unconventional Intersection Designs for Improving Traffic Operation Along Arterial Roads

The main objective of this paper is to evaluate the effect of implementing four Unconventional Arterial Intersection Designs (UAIDs) including median U-Turn, Superstreet, Jughandle and Single Quadrant Intersection on a major arterial road using SYNCHRO microscopic simulation software. For this purpose, Wadi Saqra Signalized Intersection on Shaker Bin Zaid major arterial road in Amman, Jordan was selected. The simulation results showed that only the Jughandle improved the intersection Level of Service (LOS) slightly, F–E. Nevertheless, the intersection delay was significantly reduced by 64.81%, 76.6%, 91.28% and 75.60% on the proposed Median U-Turn, Superstreet, Jughandle and Single Quadrant unconventional intersection design, respectively. This indicated that these UAIDs don't perform well under heavy traffic volumes. Also, since the Jughandle was the only UAID which improved the LOS on the main intersection, the operational performance of Prince Shaker Bin Zaid arterial after implementing the Jughandle at the main intersection was evaluated including the main intersection: Wadi Saqra intersection, one prior to the main intersection and one after the main intersection. It was found that the use of the Jughandle increased the average travel speed by 35% and decreased the average stopped delay by 28.68% on the arterial road. Also, this paper evaluated the current transportation system and road user's attitude towards UAIDs' implementation through a questionnaire survey. The results indicated high acceptance of UAIDs. Finally, the construction cost for each UAID type was estimated. It was found that the Jughandle had the highest construction cost due to its high acquisition cost.

TRAFFIC ACCIDENT POINT ANALYSIS, ON PRIMARY ARTERIAL ROAD-SUKABUMI DISTRICT

<p>The increasing number of residents every year causes the need for transportation to also increase, this also occurs on the Sukabumi-Bogor Primary Arterial Road which is a road with a fairly high volume of traffic flow, in addition because the industrial center and tourism sector are located right on the national road, Insufficient geometric roads caused by the increasing number of vehicles is also a factor that affects the high number of traffic accidents along the Cibadak – Bogor Road. The purpose of this study was to analyze the characteristics of the accident-prone areas (blackspots) on the Jl. Surya Kencana, Pamuruyan Village, Cibadak District - Jl. Raya Ciutara, Pondok Kaso Landeuh Village, Parungkuda District. The method used in this study is the EAN (Equivalent Accident Number) method and the Cussum (Cumulative Summery) method. From the results of the weighting using the EAN method, it was identified that STA 1, STA 4, STA 5, and STA 6 were blackspots. Meanwhile, the Cussum method identified STA 1, STA 4, STA 5, STA 6, and STA 9 as blackspots. The right type of handling for accident-prone locations from the observations, among others, is making a thunder strip facility close to the zebra cross area to reduce vehicle speed and installing a safety fence on the shoulder of the road so as to minimize road crossings that directly cross the road without using zebra cross facilities.</p>

Distance analysis of U-turn round facilities for sustainable urban development (case study of Ahmad Yani Road, Tirtayasa and Cilegon road)

Cilegon City is an industrial city with internal and internal movements occurring on one access road stretching from Jalan Raya Cilegon, Jalan Ahmad Yani, and Jalan Sultan Ageng Tirtayasa. This arterial road section has a total road length of 5 km that passes through the Cilegon City area, which is the center of activity. Efficient use of traffic space by arranging the traffic space efficiency is used the distance between U-turns so that delays and queues are low. As long this road network has the highest volume of 2,399 pcu/h with an average speed of 32 km/h and reaching a VCR of 0.8 has a median number of 13-point openings, the number of uncontrolled U-turns causes many conflicts traffic that will cause traffic disruption when a vehicle makes a U-turn. The purpose of this study is to improve the performance of the road network in the Area of the City of Cilegon by knowing the best distance between U-Turns. Simulation analysis uses Vissim software to produce the ideal distance for each opening in the Cilegon City arterial road, which is then utilized in the arrange of the U-turn facility itself. The method used is the calculates of existing traffic performance and simulation to determine the ideal distance between U-Turn facilities. The simulation results with the ideal Vissim model of the distance between the turning facilities were 650 meters with an average delay of 17.56 seconds, a network speed of 33.07 km/h, a total distance of 28,453.34 km, and the total travel time to be 847.30 hours.

Utilização do corsim na escolha de uma alternativa para um corredor de tráfego congestionado

RESUMO Este trabalho tem o objetivo de apresentar um estudo realizado na cidade do Rio de janeiro, onde foi utilizado um programa de micro-simulação na tentativa de escolher a melhor alternativa para uma via arterial primária, que faz a ligação do centro com a zona norte da cidade e que possui vários pontos de retenção nos horários de pico. Para a realização deste trabalho foram pesquisados os volumes de tráfego, os tempos de permanência dos ônibus nos pontos de parada e as suas frequências, os ciclos semafóricos adotados, entre outros dados que foram utilizados com intuito representar o cenário atual e as alternativas testadas para a solução do problema. ABSTRACT This paper aims to present a study carried out in the city of Rio de Janeiro, where a microsimulation program was used in an attempt to choose the best alternative for a primary arterial road, which connects the center with the northern zone of the city and has several stops at peak hours. To carry out this work we researched the traffic volumes, the dwell times of buses at stops and their frequencies, the traffic light cycles adopted, among other data that were used in order to represent the current scenario and the alternatives tested to solve the problem.