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| 1 | Overtaking behaviour of vehicles on undivided roads in non-lane based mixed traffic conditions显示文摘Traffic on Indian roads is highly mixed in nature with wide variations in the static and dynamic characteristics of vehicles. These vehicles do not follow strict lane discipline and occupy any available lateral position on the road space. Overtaking is one of the most complex and important manoeuvre on undivided roads where the vehicles use the opposing lane to overtake the slower vehicles with the presence of oncoming vehicles from opposite direction. They are unavoidable especially in the case of mixed traffic conditions where there is always a speed difference between the fast and slow moving vehicles.Overtaking process involves lane-changing manoeuvres, acceleration and deceleration actions and estimation of relative speed of overtaking and overtaken vehicles, and also,estimation of speed and distance of the oncoming vehicle. The main objective of the present study is to study the overtaking characteristics of vehicles on undivided roads under mixed traffic conditions. For this purpose, details of overtaking data were collected on a two-lane two-way undivided road using moving car observer method and registration plate method. The overtaking characteristics of all types of vehicles under mixed traffic conditions were observed and mathematically modelled.The data extracted and analysed were the acceleration characteristics, speeds of the overtaking vehicles, overtaking time, overtaking distances, safe opposing gap required for overtaking, flow rates, overtaking frequencies, types of overtaking strategy, and types of overtaking and overtaken vehicles. Two types of overtaking strategies were observed in the field such as flying overtaking and accelerative overtaking. Graphs were plotted between the relative speed of the overtaking and overtaken vehicles against the overtaking time and negative correlation was found between the speed differential and total overtaking time for all categories of vehicles. It was observed that the number of overtaking increases with increase in the flow rate in the on-going direction and decreases with increase in flow in the opposite direction. The results obtained from this study will be useful to understand the overtaking behaviour of vehicles in mixed and non-lane discipline traffic conditions. These parameters will be useful in the development of traffic simulations models for undivided roads and thereby for estimation of capacity. The findings from the study can also be used to estimate potential collision times which will be helpful to improve the road safety. | Gowri Asaithambi Gugulothu Shravani | 2017 | Journal of Traffic and Transportation Engineering(English Edition)2017，4，3： | 5 |
| 2 | Synthesis and antimicrobial activity of ethyl-2-chloro-4-substituted 6-(4-methoxybenzoyl)-4H-thieno[3,2-b]pyrrole-5-carboxylates显示文摘 | Ashok D Goud P S Shravani D | | 0，，： | 1 |
| 3 | Web Services Security Architectures Composition and Contract Design Using RBAC 显示文摘 | Shravani D Suresh P V Padmaja B R | 2010 | International Journal on Computer Science and Engineering2010，8，2： | 1 |
| 4 | Web serv- ices security architectures composition and contract design using RBAC显示文摘 | SHRAVANI D SURESI-I P V PADMAJA B R | 2010 | International Journal on Computer Science and En- gineering2010，8，2： | 1 |
| 5 | Web services security architectures composition and contract design using RABC显示文摘 | Shravani D Suresh P V Padmaja B R | 2010 | International Journal on Computer Science and Engineering2010，8，2： | 1 |
| 6 | Safety and Effectiveness of Chemoembolization with Drug-Eluting Beads for Advanced-Stage Hepatocellular Carcinoma显示文摘 | Sanjeeva P. Kalva Melina Pectasides Raymond Liu Niranjan Rachamreddy Shravani Surakanti Kalpana Yeddula Suvranu Ganguli Stephan Wicky Lawrence S. Blaszkowsky Andrew X. Zhu | 2014 | CardioVascular and Interventional Radiology2014，，2： | 1 |
| 7 | Food Allergens and Food Safety: A Global Perspective with Respect to Codex Alimentarius显示文摘 | Shastry Shravani | 2012 | Journal of Food Science and Engineering2012，2，8： | 0 |
| 8 | Kinetics study of metaxalone degradation under hydrolytic, oxidative and thermal stress conditions using stability-indicating HPLC method显示文摘An isocratic stability indicating RP-HPLC-UV method is presented for the determination of metaxalone (MET) in the presence of its degradation products. The method uses Dr. Maisch C18 column (250 mm 4.6 mm, 5 mm) with mobile phase consisting of acetonitrile-potassium dihydrogen orthophosphate buffer with 4 mL of 0.4% triethyl amine (pH 3.0; 10 mM) (58:42, v/v) at a flow rate of 1.0 mL/min. pH of the buffer was adjusted with o-phosphoric acid. UV detection was performed at 225 nm. The method was validated for specificity, linearity, precision, accuracy, limit of detection, limit of quantification and robustness. The calibration plot was linear over the concentration range of 1-100 mg/mL having a correlation coefficient (r2) of 0.999. Limits of detection and quantification were 0.3 and 1 mg/mL, respectively. Intra-day and inter-day precision (% RSD) was 0.65 and 0.79 respectively. The proposed method was used to investigate the degradation kinetics of MET under different stress conditions employed. Degradation of MET followed a pseudo-first-order kinetics, and rate constant (K), time left for 50% potency (t1/2), and time left for 90% potency (t90) were calculated. | Vamsi Krishna Marothu Rajendra N. Dash Saritha Vemula Shravani Donkena Ramesh Devi Madhavi Gorrepati | 2012 | Journal of Pharmaceutical Analysis2012，2，6： | 0 |
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