장수은 교수

Abstract A two‐way interaction between transport and land‐use has been one of the central research topics of transport studies. Thus, it is not surprising that there have been numerous approaches taken to investigate this reciprocal relationship. This paper critically examines the existing literature to see how effectively the current models represent this mutual interaction. This examination process intends to form a prototype reference that compares and contrasts the advantages and disadvantag

This paper compares the performance of trip generation models. Trip generation estimates the number of trips to and from a traffic analysis zone. This process is the first stage of the conventional four-step travel forecasting framework. Although many approaches have been suggested for this step, regression and category analyses have been widely applied. The two methods have generated an acceptable level of performance from the perspective of transport planning. Critical problems, however, have

There have been extensive studies on the monetary valuations for the transit service attributes such as fares, frequency, and in- and out-of-vehicle time. On the contrary, five categories of the elements relating to tangible, comfort, convenience, customer care, and safety and security have not been sufficiently evaluated. This paper explored the valuations based on the service improvements of Korean high-speed rail. The survey for attribute selection identified 11 user-tailored items for the be

Excess commuting refers to wasteful journey-to-work travel, resulting from the non-optimal spatial configuration of residences and workplaces. Traditionally, this concept has been employed to analyse the efficiency of the urban structure. This paper, however, examines the spatial equity of excess commuting, which is an essential component of a sustainable urban transport system. The Gini coefficient and GIS mapping are used to measure this spatial equity, supported by data from Seoul’s Tmoney tr

Road safety performance varies among local municipalities since road safety involves multiple inputs (e.g. facilities and programs) and multiple outputs (e.g. crashes and casualties). A benchmark analysis between local governments is a useful platform to improve their road safety performances because the analysis can specify which other municipalities' processes should be consulted to improve their practices. This study employs the data envelopment analysis approach for benchmark analysis. The i

Indian transportation sector faces the severe challenges in the account of the limited expansion of relevant infrastructure, lack of integration among major transport systems like railways and roadways, and multiple institutions deal with these systems with different mandates. Thus the sector needs the multi-pronged approach to address the challenges in sustainable development. To derive such strategies, this paper assesses India’s evolution of transport policies, identifies the gap between dema

본 연구는 철도의 선택 및 비사용 가치를 논의한다. 교통서비스의 총경계적 가치는 여러 가지로 분류될 수 있으나, 사용 가치, 선택 가치, 비사용 가치로 구분할 수 있다. 사용 가치는 특정 교통시설의 실제 이용에 대한 지불용의액이다. 반면 선택 가치는 특정 교통시설을 주로 이용하지 않으나 잠재적 이용 가능성에 대한 지불용의액이다. 마지막으로 비사용 가치는 특정 교통시설을 실제로 또는 선택적으로 이용하지 않으나, 그 교통시설에 내재한 대리적, 이타적, 기능적, 존재적 가치에 대한 지불용의액이다. 선택 및 비사용 가치를 추정하기 위하여 이중제약 양분선택형 잠재선호조사를 시행한다. 조사된 자료를 생존모형을 이용하여 분석한다. 모형의 모수 추정치를 이용하여 철도의 선택 및 비사용 가치를 산정한다. 마지막으로 연구결과의 (예비)타당성조사 활용방안을 제시한다.

As ground transport infrastructure causes diverse externalities such as noise and urban separation, the rerouting of such facilities to tunnels is one practical option to resolve the problem of social costs. Although such a mega-project is normally associated with huge budgets, this solution can also generate useful benefits for society. This paper explores these benefits using the Yongsan line in Seoul, Korea, as a case study. Four representative values are considered. Noise reduction benefits

Traditionally, the performance of transit service has been assessed using the framework of level of service or quality of service. This study proposes a novel platform for evaluating performance in the context of resilience. The term resilience represents the ability of a system to absorb and recover from shocks. The concept is thus useful to monitor the degradation and recovery of transit service. This new model is applied to Seoul Metro Line 7 using frequency as the service attribute that coul

This paper deals with a novel patronage ramp-up analysis model. The ramp-up effect represents the delay in ridership take-up during the first periods of new transport services or facilities. This influence is known as one of the external errors of transport demand forecasts, which degrades the reliability of demand studies and economic appraisal for transport schemes. Traditionally, professional judgment and regression analyses have been used to investigate this effect, but the existing methodol